Materials for a Flora of the Malayan Peninsula. 53 



Singapore: Galang (Ridley 10374), Telok Kiirau (Ridley 

 10;;8) ; Bindings: Bruas (^249). Distrib. Pegu. 



3. L. roLYRKHiZA, Linn. Sp. PI. 910. Roots several i inch 

 long, frond orbicular or ovate rather thick g inch long green above 

 purple beneath. Spathe 2 lipped. Stamens 3. Ovules 1-2. Rclib. 

 Ic. PL Germ. YIl. t. lo. Kurz. Jouru. Linn. Soc. IX. 267. Hook, 

 m. Fl. Brit. Ind. VI. 557. L. orbiculata, Roxb. Fl. Ind. III. 565. 

 L. major, Griff. Notul. III. 216. Ic. PI. As. t. 264. Spirodela 

 pohjrrliiza, Schleid. Linnea XIII. 392. Hegelni. Lemnae. 151. t. 

 13-15. 



Singapore: Ditches in Alexandra Road (Ridley). Distrib. 

 Whole world. 



2. WoLFriA, Horkel. 



Fronds rootless minute. Flowers on the upper surface. Spathe 

 none. Anthers sessile 1 celled. Style short, stigma depressed. 

 Ovules 1 erect. 



Species 2. Whole world. 



W. AiiRHiZA, Winm. Fl. Schlesw. 140. Fi-onds globose green 

 microscopic. IF. MicheUi, Schleid. Beitrag. Bot. 233. Lemna arr- 

 hlza, Linn. Mantiss 294. L. globose, Roxb. Fl. Ind. III. 565. 

 Grantia globose, Griff. Notul. III. 229. Ic. PI. As. t. 267. f. 2. 



Singapore: Taugiin (Ridley); Malacca: Well in Residency 

 Garden. Occurs mixed often with Lemna paucicostatu. It is not 

 very common but when it occurs it is very abundant. 



XXIII. ERIOCAULOXEAE. 



Herbs, (shrubs and trees in South America) with fibrous roots, 

 stem usually very short. Leaves narrow basal. Flowers minute 

 unisexual in a head on the apex of a slender scape. Bracts forming 

 an involucre at the base. Male flowers 2-3 free of connate scales, 

 petals 2-3 or often abortive on the top of an elongate stipes. Sta- 

 mens 6 or less. Anthers two-celled. Female flowers pedicelled or 

 not. Sepals 2-3, narrow. Petals 3 rarely fewer usually ciliate. 

 Stigmas slender 2-3, style short. Ovary 3 (rarely 2-celled) ovules 

 solitary in the cells. Capsule trilobed thin-walled loculicidal. Seeds 

 very minute papillose. 



Species 6-'} 00, the greater number tropical and most in South 

 America. 



Scapes a foot tall, heads columnar obtuse . . E. scxangulare. 

 Scapes short not more than 4 inches tall. 



Heads hemispheric involucral bracts ovate 

 short E. irunculum. 



