266 MR. S. KUEZ OK INDIAK LEMKACE^. 



Plantulae majusculae, natantes, frondiculis subtus cellulose efflatis, 

 1-oligorrhizis, 



1. Telmatophace gibbA; Schleid. in Linn, xiii. 391; Kth, En.iii. p. 6. 

 Lemna gibba. Lin. Sp. pi. 1377 ; Wolf. Monogr. 26, f. 11-15; Willd. 



Sp. PL iv. 195 ; Schk. Handb. iii. t. 281 ; Engl. Bot. t. 1233 ; Fl. Dan. 



t. 1588; M. B. ii. 610; Mert. et Koch, Germ. i. 295; Rich, in 



Guill. Arch. i. 200, t. 6; N.E. Gen. vi, t. 9. f. 13-19; Brongn. in 



Guill. Arch. ii. 99, t. 12. f. 2 (fruct. et sem.); Wilson, in Hook. Bot. 



Misc. ii. 145, c. tab. (germinat.); Koch, Syn. Germ. 681 ; Kth.BeroL 



ii. 301; Blanco, FL d, Filip. 672(?). 

 Lenticula vulgaris. Lam. Gall. ii. 189. 

 Lemna vulgaris j3. Lam. Encycl. iii. 464. 

 Distr. Europe ! ; Caucasus ; Egypt ; Canarian Islands ; Amer. bor. et 



sequator. ! ; Philippines ? 



This species seems not yet to have been found in India, but 

 occurs probably in North-western India, Loureiro's X. gibba may 

 perhaps be the same as L. minor. 



Seemann's L.gibba^ No. 656, from the Piji Islets, seems to be a 

 new species ; and, with reference to the number of roots, it stands 

 in the same relation to T. gibba as my L. oligorrJiiza to L. minor. 



III. Lemna, Lin. 

 Injlorescentia lateralis. Flares masc. 2 . Ovarium 1-2-ovulatum. 

 Utriculus 1-2-spermus, indehiscens. 



Herbulse natantes v. submersae, frondiculis planis v. convexiusculis 

 mono- polyrrhizis. 



§ 1. OenuincB. Prondiculse 1-polyn-hizae, natantes. (Lemna, 



Schleid. ; Spirodelay Schleid.) 



1. Lemna minor, Lin. Spec. PL 1376 ; Wolf. Monogr. 23, f. 4-10; 

 Willd. Sp. PL iv. 194 ; R. Br. Prodr. 345 ; M. Bieb. Flor. ii. 378 ; 

 EngL Bot. t. 1095 ; Fl. Dan. t. 1587 ; Mert. et Koch, Germ. I 295 ; 

 N.E. Gen. 6, t. 9. f. 1-12; Brongn. in GuilL Arch. ii. 98, t. 12. f. 1 

 (fruct.) ; Koch, Syn. Germ. 681 ; Kth. BeroL ii. 301 ; Schleid. in Linn. \ 



xiii. 390; Hassk. Tydsch. N. Gesch.K. 123; ZolL Ca^p. 75; P/fl»'- 

 Jungh. i. 169; Kth. En. iii, 4; Miq. FL Ind. Bat. iii. 221 ; Hook. 

 Fl. Tasm. ii. 38; Hegelm. in Seem. Joum. of Bot. 1865, p. 112. 



Lenticula palustris, Vaill. Paris, t. 20. f. 3. 



Lenticula minor. Scop. Cam. no. 1142. 



Lenticula cyclostasa, Elliotts 



Lenticula minima, Humb. et Kth. Nov. Gen. i. 372. 



Lenticula minor a. minima, Chev. Paris, ii. 256. 



Lemna conjugata, Willd. herb. 17143. 



Hab. All over India and the Indian archipelago; Bengal !, flowers here 

 in March abundantly ; Khasja, 6000^, J. D. H. et T. T. ! Ceylon, 

 Thwaites; Peshawar valley, abundant. Dr. Stewart; Western Tibet, 



