MATEEIALS FOR A FLOEA OF FOEMOSA. 125 



15 mm. longa, 7 cm. lata, basi cordata valde obliqua, apice acumi- 

 nata, iiTcgulariter dentata vel duplicato-dentata palmatim 9-11-nervia, 

 crassiuscula, petiolis 10 cm. longis, stipulis triangulari-ovatis 6 mm. 

 longis. Cymae paucifloratse. Fl. J : segmenta 4, 2-exteriora majora 

 late orbiculata, 2 cm. in diametro, 2-interiora minora obovata, apice 

 rotundata 1 J cm. longa, 1 cm. lata. Stamina oo , 4 mm. longa, fila- 

 mentis liberis 2 mm. longis, antheris 1^ mm. longis connectivis 

 leviter productis apice rotundatis. Fructus capsularis 23 mm. 

 longus, insequaliter trigonus, insequaliter trialatus, alls 2-anterioribus 

 angustioribus, 4 mm. latis 23 mm. longis, 1 -posteriore latiore, 20 mm. 

 lata, 17 mm. longa. Semina minutissima. 



Hab. Inter Giran et Heirinbi; inter Urai et Eaga; Bokusekikaku, 

 leg. K. MiYAKE, 1899 ; Sliichiseitonzan et Hokuto, leg. B. Hayata, 

 1900, Aug. 



The present Begonia is the most common one iii Formosa. 

 It differs from B. laciniata Eoxb. var. Boicringiana in having quite 

 glabrous leaves. The latter variety is always tomentose or 

 pubescent. The Formosan one should, therefore, be another 

 variety of B. laciniata to -which Mr. W. B. Hemsley also refers 

 in Ind. Fl. Sin. I. p. 322. It bears some resemblance to B. 

 sinensis ; but differs from it in having larger flowers and glabrous 

 leaves. 



Begonia taiwaniana Hayata sp. nov. Caulis glaber, vahdius- 

 culus ramosus. Foha petiolata, stipulata, glabra, lanceolata, 13 cm. 

 longa, 3i cm. lata, basi cordata, vel rotundata, irregulariter ser- 

 rulata, latere inferiore dentata, 5-7-nervia, petiohs 4 cm. longis, 

 stipulis subulatis 3 mm. longis. Cyma3 axillares paucifloratae, 

 ])racteis ovatis, acuminatis 5 mm. longis. Fl. J : perianthii 

 segmenta 4, 2-exteriora majora late obovata mm. longa. Stamina 



