Acrotrema .] 
II. DILLENIACEjE. 
7 
3 . ACROTREMA, Jack. 
Herbs with woody rhizomes and large, rosulate, membranous 
leaves with sheathing stipules. Scape short axillary. Sepals 5, 
hairy. Petals 5, fugacious, yellow. Stamens numerous in three 
bundles alternating with the carpels; filaments filiform; anthers 
with porous dehiscence. Pistils 3. Styles subulate recurved. 
Ovules 2 or more. Follicles 3, irregularly dehiscing. Seed with 
membranous aril, testa crustaceous, pitted. S. India, Ceylon 
and Malay Peninsula, 10 species, 8 of which are Cinghalese. 
(1) A.costatum Jack, Mai. Misc. i. No. 5, p. 36; King, l.c. 363. 
Stem .usually short to 6 in. long. Leaves obovate dentate 
ciliate, base narrowed sagittate, hairy, deep green often with a 
grey central line, or marked with red, 4-5 to 12 in. long, 2'3 to 4 in. 
wide, spreading flat. Scape 2-5 to 3*5 in. long, erect 8- to io-flowered, 
setose reddish. Flowers opening singly, an inch across, bright 
yellow. Sepals ovate-lanceolate acute, hairy, setose. Hab. In 
dense wet forest on rotten leaves or on rocks. Common from 
Johor to Kedah, Lankawi islands and Kelantan. Absent from 
Singapore and Malacca. 
4 . WORMIA, Rottb. 
Trees or shrubs. Leaves broad, coriaceous, ovate or obovate; 
nerves many, parallel; petioles winged of not. Flowers large, 
yellow, rarely white, in terminal racemes or few-branched panicles. 
Sepals 5, persistent closing over the fruit after fertilization, and 
expanding again with the dehiscence. Petals 5 > obovate, thin. 
Stamens indefinite in several series, outer row usually longer than 
the inner; anthers linear, opening by 2 pores. Carpels 5 to 10. 
Ovules numerous. Follicles cartilaginous, dehiscent along the inner 
face and widely expanded, pink or more rarely white. Seeds 
black with a red aril. Species about 20, tropical Asia to 
Australia, one in Madagascar. 
A. A latts. Petioles strongly winged enclosing bud. 
Flowers large, yellow, young parts nearly glabrous 
Flowers large, yellow, young parts white floccose 
Flowers small, white ....■• 
B. Exalata. Petioles terete, not winged; plant quite 
glabrous. 
Flowers 3 to 4 in. across . 
Flowers 2 in. across ...... 
Midrib beneath and petiole hairy . 
Leaves hairy beneath 
(1) W. subsessilis 
(2) W. suffruticosa 
(3) W. albiflos 
(4) W. oblonga 
(5) W. pulchella 
(6) W. parviflora 
(7) W. tomentella 
(1) W. subsessilis Miq. FI. Ind. Bat. Supp. i. 618; Ann. 
Mus. Bot. Lugd. Bat. i. 315, t. 9; Ridl. Journ. Roy. As. Soc. S. By. 54, 
p. 4. 
