MATERIALS FOR A FLORA OF ’FORMOSA. 125 
15 mm. longa, 7 em. lata, basi cordata valde obliqua, apice acumi- 
nata, irregulariter dentata vel duplicato-dentata palmatim 9-11-nervia, 
crassiuscula, petiolis 10 em. longis, stipulis triangulari-ovatis 6 mm. 
longis. Cyme pauciflorate. Fl. 2 : segmenta 4, 2-exteriora majora 
late orbiculata, 2 cm. in diametro, 2-interiora minora obovata, apice 
rotundata 14 em. longa, 1 cm. lata. Stamina«, 4 mm. longa, fila- 
mentis liberis 2 mm. longis, antheris 14 mm. longis connectivis 
leviter productis apice rotundatis. Fructus capsularis 23 mm, 
longus, ineequaliter trigonus, insequaliter trialatus, alis 2-anterioribus 
angustioribus, 4 mm. latis 23 mm. longis, 1-posteriore latiore, 20 mm. 
lata, 17 mm. longa. Semina minutissima. 
Has. Inter Giran et Heirinbi; inter Urai et Raga; Bokusekikaku, 
leg. K. Mryaxe, 1899; Shichiseitonzan et Hokuto, leg. B, Hayata, 
1900,. Aug. 
The present Begonia is the most common one in Formosa. 
It differs from B. laciniata Roxs. var. Bowringiana 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. Hemstey 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, validius- 
culus ramosus. Folia petiolata, stipulata, glabra, lanceolata, 13 cm. 
longa, 34 cm. lata, basi cordata, vel rotundata, irregulariter ser- 
rulata, latere inferiore dentata, 5-7-nervia, petiolis 4 cm. longis, 
stipulis subulatis 3mm. longis. Cyme axillares pauciflorate, 
bracteis ovatis, acuminatis 5 mm.longis. Fl. §:  perianthii 
segmenta 4, 2-exteriora majora late obovata 6 mm. longa, Stamina 
