2

CONVOLVULACEAE

Ipomoea sagittifolia Burm f,

S. ANDAMANS, DHANIKARI

1

803, 2034, 4347

3

0

frequent along roadsides, 2 km before Dhanikari

11/02/1995

W.F. Gastmans
M.B. Ragothaman

sea

climber

a vine with twining stem; inflorescence axillary

frequent

marshy

glossy green above, paler beneath

pinkish white with dark pink throat

littoral and swamp

3

CONVOLVULACEAE

Ipomoea cairica (L.) Sweet

S. ANDAMANS, DHANIKARI

2

799, 2033, 4345

3

0

FRLHT 1

locally frequent

11/02/1995

W.F. Gastmans
M.B. Ragothaman

sea

climber

frequent

marshy

flowering

bluish violet, darker throats

littoral and swamp

4

VERBENACEAE

Stachytarpheta jamaicensis (L.) Vahl

S. ANDAMANS, DHANIKARI

3

807, 2254, 4284

3

0

locally frequent along roadsides and other disturbed areas; collected along the main road from Port Blair to Wandoor, 2 km before Dhanikari

11/02/1995

W.F. Gastmans
M.B. Ragothaman

sea

herb

a herb with a tap root and greenish stem

frequent

in wet soil

bluish-violet

5

APOCYNACEAE

Cerbera odollam Gaertn.

S. ANDAMANS, WANDOOR

4

798, 1972

2

0

FRLHT 2

growing in a silted creek, just East of the ANET base; a frequent mangal componentstem covered with epiphytes

11/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea

a shrub with copious milky latex

frequent

marshy

shiny above

flowering, fruiting

white, faintly fragrant

drupe, green and shiny, turning red before falling, globose

littoral and swamp

6

CELASTRACEAE

Salacia chinensis L.

S. ANDAMANS, WANDOOR

5

793, 2100, 4123

3

0

ANET, East of base, in the Heritiera littoralis-Pongamia pinnata communitygrowing in black clayey soil with a smooth texture

11/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27 N
92°38''50 E

12°36''27 N

92°38''50 E

sea level

liana

a liana with greyish bark; inflorescence in axillary clusters

associated with Mangal ecotonal species

occasional

marshy

shiny above

greenish-yellow with a mild and pleasant fragrance

oblong, orange when ripe

littoral and swamp

7

PTERIDACEAE

Acrostichum aureum L.

S. ANDAMANS, WANDOOR

6

788, 814, 4242

3

0

FRLHT 1

ANET, East of base, in the Heritiera littoralis - Pongamia pinnata community; always growing on little mounds; abundant in places;black clayey soil with a smooth texture

11/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea level

herb

an almost stemless fern

Mangal ecotone zone

frequent

marshy

coriaceous, from 1.08 - 2.25 cm long, leaflets from 15 - 42 cm long; separate male and female fronds

littoral and swamp

8

APOCYNACEAE

Dischidia major (Vahl) Merr.

S. ANDAMANS, WANDOOR

7

790, 1982, 4501

3

1

in silted creek East of ANET base, in the Heritiera littoralis - Pongamia pinnata community; frequent on mangals

11/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea

epiphyte

an epiphyte with fibrous roots and copious milky latex

growing on Heritiera littoralis

frequent

marshy

succulent

white

littoral and swamp

9

APOCYNACEAE

Hoya verticillata (Vahl) G. Don var. verticillata

S. ANDAMANS, WANDOOR

8

786, 1982, 4500

3

0

growing in a silted creek East of ANET base, in the Heritiera littoralis - Pongamia pinnata community; frequent on mangal plants

11/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea

epiphyte

hanging epiphyte; root fibrous; copious milky latex

on Cerbera odollam

frequent

marshy

succulent, 3-nerved, green and red

littoral and swamp

10

MALVACEAE

Urena lobata L. ssp. lobata

S. ANDAMANS, SIPPIGHAT

9

787, 2123, 4157

3

0

13/02/1995

W.F. Gastmans
M.B. Ragothaman

sea

herb

among roadside weeds

frequent

pink

hooked capsule, 5-segmented

11

CONVOLVULACEAE

Ipomoea pes-caprae (L.) R.Br.

S. ANDAMANS, WANDOOR

11

791, 2035, 4348

3

0

growing right on the beach in fine white sand, an efficient sand binderNorth of ANET base

13/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea

vine

prostrate vine, rooting at the nodes

frequent

on sand

pale purple

capsule

12

FABACEAE

Pongamia pinnata (L.) Pierre

S. ANDAMANS, WANDOOR

12

797, 2085, 4107

3

0

North of ANET base, to the West along the coast, just above the high tide water mark in fine white sandleaves often with galls

13/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea

tree

frequent

coastal

cream-white, pale rose inside

pod

13

ASTERACEAE

Acmella calva (DC.) R.K.Jansen

S. ANDAMANS, WANDOOR

13

792, 1991, 4508

3

1

growing in ANET base; a frequent weed

13/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

5 m

herb

inflorescence in terminal and axillary heads

with other weeds which grow in full sun

frequent

grassy place, full sun, clayey soil

yellow

disturbed areas

14

MIMOSACEAE

Mimosa pudica L.

S. ANDAMANS, WANDOOR

14

794, 2144, 4179

Tottalvadi

3

0

growing in disturbed areas; collected in ANET base

13/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

5 m

herb

very prickly herb

with other weeds

frequent

rose

15

ASTERACEAE

Synedrella nodiflora (L.) Gaertn.

S. ANDAMANS, WANDOOR

15

795, 1992, 4509

3

1

frequent in disturbed places

13/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

5 m

herb

inflorescence in axillary heads

frequent

grassy place, full sun, clayey soil

yellow

16

ASTERACEAE

Cyanthillium cinereum (L.) H. Rob.

S. ANDAMANS, WANDOOR

16

796, 1993, 4509

3

1

frequent in disturbed areas, roadsides

13/02/1995

W.F. Gastmans
M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

5 m

herb

frequent

grassy place, full sun, clayey soil

road sides

17

ACANTHACEAE

Eranthemum pulchellum Andrews

S. ANDAMANS, PATHAR TIKRI

17

785, 1954, 4635

3

0

growing just above the high tide water line in clayey soil; also in canopy gaps due to tree fall

22/02/1995

M.B. Ragothaman

sea level

herb

inflorescence in terminal spikes

frequent

clayey soil

bracts leafy, pale blue, corolla lobes with reticulate venation

littoral and swamp

18

ACANTHACEAE

Nelsonia canescens (Lam.) Spreng.

S. ANDAMANS, WANDOOR

18

784, 1954

2

0

KEW 1

frequent in cleared areas

23/02/1995

M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea

herb

a hirsute herb with procumbent stem

open land species like Mimosa pudica, Chromolaena odorata etc.

frequent

hirsute or softly tomentose

inflorescence a compressed spike or rosette, flowers pale violet, the upper two corolla lobes have a darker inside

open land

19

COMBRETACEAE

Lumnitzera littorea (Jack) Voigt

S. ANDAMANS, WANDOOR

19

783, 2028, 4337

3

0

growing in a silted creek East of ANET base, in the Heritiera littoralis - Pongamia pinnata community, in sandy loam; occasional in Mangal forests

23/02/1995

M.B. Ragothaman

12°36'' N
92°39'''' E

12°36'' N

92°39'''' E

sea

tree

inflorescence terminal

Mangals

occasional

marshy

scarlet

littoral and swamp

20

RUBIACEAE

Scyphiphora hydrophyllacea Gaertn.f.

S. ANDAMANS, WANDOOR

20

782, 2236, 4329

3

0

East of ANET base next to the Mangrove forest

23/02/1995

M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea

shrub

Mangals

occasional

marshy

grouped at end of branchlets

white

littoral and swamp

21

ASPARAGACEAE

Dracaena spicata Roxb.

S. ANDAMANS, LOHABALI

21

781, 1956

2

0

28/02/1995

M.B. Ragothaman

tree

inflorescence in panicles

frequent

loamy

whitish

evergreen, semi-evergreen

22

ACANTHACEAE

Pseuderanthemum album (Roxb.) Merr.

S. ANDAMANS, LOHABALI

22

771, 1953, 4638

3

0

occasional to frequent; the plant is common in many forest types

28/02/1995

M.B. Ragothaman

sea

herb

occasional

opposite, decussate

pale rose

in many forest types

23

ASTERACEAE

Launea sarmentosa (Willd.) Kuntze

S. ANDAMANS, GRUB ISLAND

23

772, 1990, 4504

3

0

growing on the beach facing East, in white sandsyn: L. pinnatifida Cass.

08/03/1995

M.B. Ragothaman

sea

creeper

a herb rooting at the bigger nodes

beach flora

frequent

sandy

succulent, in rosettes at nodes

yellow

littoral

24

EUPHORBIACEAE

Euphorbia atoto G.Forst.

S. ANDAMANS, GRUB ISLAND

24

773, 2069, 4378

3

0

frequent on sandy beaches

08/03/1995

M.B. Ragothaman

sea

herb

frequent

sandy

inflorescence a cyathium

littoral

25

LYTHRACEAE

Pemphis acidula J.R.Forst. et G.Forst.

S. ANDAMANS, GRUB ISLAND

25

774, 2116, 4149

3

0

prefers rocky terrain on beaches; typically found on West coasts; occasional, to frequent in places

08/03/1995

M.B. Ragothaman

sea

shrub

occasional

with appressed silky tomentum

white

littoral

26

MORACEAE

Ficus microcarpa L.f.

S. ANDAMANS, CHESTER

26

775, 2164, 4217

3

0

the forest is mostly undisturbed

08/03/1995

M.B. Ragothaman

12°34''39'''' N
92°35''15'''' E

12°34''39'''' N

92°35''15'''' E

sea

tree

Terminalia catappa, Manilkara littoralis and other coastal trees

occasional

sand

dark green above

hypanthium, usually in pairs, 1/4"

syconium

littoral and swamp

27

HERNANDIACEAE

Hernandia nymphaeifolia (C.Presl) Kubitzki

S. ANDAMANS, CHESTER

27

776, 2095, 4121

3

0

only one tree found on Chester Island

10/03/1995

M.B. Ragothaman

12°34''39 N
92°35''15 E

12°34''39 N

92°35''15 E

sea level

tree

littoral species like Scaevola

rare

sand

peltate

inside a receptacle which opens on top

littoral

28

FLAGELLARIACEAE

Flagellaria indica L.

S. ANDAMANS, WANDOOR

28

777, 2087, 4114

3

0

FRLHT 1

to the East of the ANET base in the Heritiera littoralis-Pongamia pinnata communityalso found along the beach at North Wandoor

13/03/1995

M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea

climber

frequent

marshy

tip modified into a tendril

orange

littoral

29

GENTIANACEAE

Fagraea racemosa Jack et Wall.

S. ANDAMANS, WANDOOR

29

778, 2111, 4141

3

0

growing on the hillock behind ANET, in loamy soil

13/03/1995

M.B. Ragothaman

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

30 m

tree

occasional

loamy

lobes white, tube orange

evergreen

30

ANNONACEAE

Goniothalamus macrophyllus (Blume) Hook.f. et Thomson

S. ANDAMANS, CHIDYATAPU

30

779, 1967

2

0

generally found in undisturbed patches

21/03/1995

M.B. Ragothaman

tree

occasional

others

rrenish, frarant

whitish

evergreen

31

SAPINDACEAE

Dodonaea viscosa Jacq.

S. ANDAMANS, CHIDYATAPU

31

780, 2215, 4256

Virali

3

0

in sandy soil; occasional, to frequent in places

21/03/1995

M.B. Ragothaman

shrub

littoral species

occasional

sandy

greenish-yellow

compressed, winged

littoral and swamp

32

RHIZOPHORACEAE

Ceriops tagal (Perr.) C.B.Robins.

S. ANDAMANS, CHIDYATAPU

32

770, 2192, 4248

3

0

21/03/1995

M.B. Ragothaman

sea

tree

Mangals

occasional

marshy, loamy / clayey

white

littoral and swamp

33

LAMIACEAE

Clerodendrum infortunatum L.

S. ANDAMANS, WANDOOR

33

805, 2253, 4280

3

0

on the hill slope to the West of ANET base; very common in clearings

23/03/1995

M.B. Ragothaman

12°36'' N
92°39'''' E

12°36'' N

92°39'''' E

shrub

inflorescence a terminal panicle

very common

white tinged with pink

disturbed forest clearing

34

MARANTACEAE

Maranta arundinacea L.

S. ANDAMANS, WANDOOR

34

806, 2125, 4158

3

0

in damp places; on hillock West of ANET

23/03/1995

M.B. Ragothaman

12°36'' N

12°36'' N

shrub

a shrub with a smooth stem and dark green bark

frequent

damp places

white, fragrant

round

evergreen forest

35

RHIZOPHORACEAE

Rhizophora mucronata Poir.

S. ANDAMANS, BELLE ISLAND

35

802, 2193, 4252

3

0

frequent, to abundant in places

25/03/1995

M.B. Ragothaman

sea

tree

inflorescence in axillary cymes

Mangals

frequent

marshy

pale white, fragrant, corolla hairy

mangrove

36

ORCHIDACEAE

Eulophia pulchra (Thouars) Lindl.

S. ANDAMANS, BELLE ISLAND

36

804, 2201, 4199

3

0

terrestrial orchid

25/03/1995

M.B. Ragothaman

epiphyte

frequent

loam near the coast

greenish

evergreen

37

ANNONACEAE

Trivalvaria dubia (Kurz) Sinclair

S. ANDAMANS, BELLE ISLAND

37

801, 1966

2

0

25/03/1995

M.B. Ragothaman

sea level

shrub

very common

common in evergreen patches

solitary, white, corolla tomentose

evergreen

38

GOODENIACEAE

Scaevola taccada (Gaertn.) Roxb.

S. ANDAMANS, WEST TWINS

38

800, 2092, 4116

3

0

very common littoral species

13/04/1995

M.B. Ragothaman

12°23''56'''' N
92°33''47'''' E

12°23''56'''' N

92°33''47'''' E

sea level

shrub

littoral flora

common

sandy

light green

flowering, fruiting

white, corolla split, lobes all on one side

white, ribbed

littoral

39

RUBIACEAE

Guettarda speciosa L.

S. ANDAMANS, WEST TWINS

39

813, 2235, 4309

sea coast teak

3

0

this species is often growing right up to the high tide water mark

13/04/1995

M.B. Ragothaman

sea level

tree

inflorescence in few-flowered axillary cymes

littoral species like Hibiscus tiliaceus, Scaevola koenigii

frequent

sandy

white, fragrant

a drupe

littoral & swamp

40

RHAMNACEAE

Colubrina asiatica (L.) Brongn.

S. ANDAMANS, WEST TWINS

40

812, 2196, 4330

3

0

13/04/1995

M.B. Ragothaman

sea level

straggler

littoral species

common

sandy

greenish, white, small

littoral

41

ASTERACEAE

Wollastonia biflora (L.) DC.

S. ANDAMANS, WEST TWINS

41

811, 1989, 4503

3

1

common creeper on beachessyn: A. lavenia (L.) Kuntze

13/04/1995

M.B. Ragothaman

sea level

creeper

common

sandy

yellow, capitullum

littoral

42

MYRTACEAE

Syzygium samarangense (Blume) Merr. et Perry

S. ANDAMANS, EAST TWINS

42

810, 2178, 4185

3

0

13/04/1995

M.B. Ragothaman

sea level

tree

frequent

sandy

white, very fragrant

littoral

43

MALPIGHIACEAE

Hiptage benghalensis (L.) Kurz

S. ANDAMANS, EAST TWINS

43

809, 2117, 4151

3

0

13/04/1995

M.B. Ragothaman

12°23''56 N
92°34''16 E

12°23''56 N

92°34''16 E

sea level

liana

a woody liana

common

sandy

small, whitish (pale)

Mixed Mohwa forest

44

PRIMULACEAE

Ardisia solanacea Roxb.

S. ANDAMANS, EAST TWINS

44

808, 2173, 4205

3

0

in Heritiera littoralis-Pongamia pinnata community; more frequent near the coast but also inlandsyn: A. solanacea Roxb.

13/04/1995

M.B. Ragothaman

sea level

tree

Heritiera littoralis

common

sandy

succulent, gland dotted

purplish- black

littoral

45

FABACEAE

Brachypterum scandens (Roxb.) Wight et Arn.

S. ANDAMANS, WANDOOR

51

1000, 2072, 4102

3

0

growing East of ANET base, just on the border of the Mangal forest in the Heritiera littoralis-Pongamia pinnata communitysyn: E. rheedii Sprengel / E. scandens Benth.

09/03/1996

W.F. Gastmans
N. Balachandran

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea level

liana

huge liana, trunk typically corkscrew shaped, GBH 89 cm

Fagraea sp., Heritiera littoralis, Cerbera odollam

occasional

in clayey soil

odd pinnate, alternate, leaflets minimum 3 pairs

fruiting

a woody loment; at maturity the seed segments drop out of the persistent sutures

glossy chocolate brown, ovoid, compressed, with thick outer coat

littoral

46

EBENACEAE

Diospyros undulata Wall.

S. ANDAMANS, WANDOOR

52

998, 2044, 4411

3

0

GBH 48 cm,East of ANET base just on border of Mangal forest, in Heritiera littoralis-Pongamia pinnata communitythe juice of the unripe fruits contains a very strong colouring principle

09/03/1996

W.F. Gastmans
N. Balachandran

12°36''27'''' N
92°38''50'''' E

12°36''27'''' N

92°38''50'''' E

sea level

tree

small tree, bark dark

Areca triandra, Dinochloa andamanica

frequent

in clayey soil

coriaceous, glossy dark green above, light green beneath

fruiting

a berry, globose, velvety, contains up to 8 seeds

brown

littoral

47

ORCHIDACEAE

Ascocentrum miniatum (Lindl.) Schltr.

S. ANDAMANS, WANDOOR

53

1084, 2199, 4195

3

0

bordering the Mangal forest East of ANET base, in the Heritiera littoralis-Pongamia pinnata community

09/03/1996

W.F. Gastmans
N. Balachandran

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea level

epiphyte

inflorescence an axillary, panickled spike

occasional

coriaceous, dull green above, lighter beneath

flowering, fruiting

pedicillate, yellowish, fragrant

littoral

48

ORCHIDACEAE

Ascocentrum sp.

S. ANDAMANS, WANDOOR

54

1071, 2200, 4196

3

0

East of ANET base in the Heritiera littoralis-Pongamia pinnata community

09/03/1996

W.F. Gastmans
N. Balachandran

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea level

epiphyte

growing on a Diospyros tree

occasional

coriaceous

flowering

pink and yellow, flowerstalk reddish

littoral

49

LOGANIACEAE

Strychnos acuminata Wall.

S. ANDAMANS, WANDOOR

55

928, 2109, 4143

3

0

East of ANET base, just outside the Mangal forest in the Heritiera littoralis-Pongamia pinnata community

09/03/1996

W.F. Gastmans
N. Balachandran

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea level

straggler

bark whitish

common

in clayey soil

coriaceous, shiny above, light green beneath, margin undulate

littoral

50

MALVACEAE

Heritiera littoralis Dryander

S. ANDAMANS, WANDOOR

56

984, 2249, 4273

3

0

East of ANET base, just inland of the Mangal forest in the Heritiera littoralis-Pongamia pinnata community

09/03/1996

W.F. Gastmans
N. Balachandran

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea level

tree

with typical plank roots; young twigs whitish and rugose

Pongamia pinnata

frequent

in clayey soil

coriaceous, dull green above, silvery beneath

drupe, with a rim on one side

littoral

51

ARALIACEAE

Heptapleurum venulosum (Wight & Arn.) Seem.

S. ANDAMANS, WANDOOR

57

982, 1974, 4488

3

1

East of ANET base, just inland of the Mangal forest, in the Heritiera littoralis-Pongamia pinnata community; only 2 plants found

09/03/1996

W.F. Gastmans
N. Balachandran

12°36'' N
92°39'' E

12°36'' N

92°39'' E

sea level

straggler

treelet, but growing like a straggler

occasional

in clayey soil

coriaceous, dull green, 6-7 leaflets

littoral