Acrolrema.] ii. dilleniace^. 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. 



(i) A.costatura Jack, Mai. Misc. i. No. 5, p. 36 ; King, I.e. 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 lo-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 or 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. Alatcs. Petioles strongly winged enclosing bud. 



Flowers large, yellow, young parts nearly glabrous . (i) W. subsessilis 

 Flowers large, yellow, young parts white floccose . (2) W. suffruticosa 

 Flowers small, white . . . . . • (3) W. albiflos 



B. Exalatcs. Petioles terete, not winged ; plant quite 



glabrous. 



Flowers 3 to 4 in. across . . . . • (4) W. oblonga 



Flowers 2 in. across . . . . . • (5) W. pulchella 



Midrib beneath and petiole hairy . . . . (6) W. parviflora 



Leaves hairy beneath . . . . . . (7) W. tomentella 



(i) W. subsessilis Miq. Fl. Ind. Bat. Stipp. i. 618; Ann. 

 Mus. Bot. Lugd. Bat. i. 315, t. 9 ; Ridl. Journ. Roy. As. Soc. S. Br. 54, 

 p. 4. 



