5T. DEGONIACEEE. & 
57. Begoniaceze. 
Begonia Liv. 
Key to the. Formosan | Species. 
(1) Leaves quite glabrous. (2) 
Leaves more or less hairy. (4) 
aon uneavessbroadiys rounded eerte s re sEIT e spes T B. kotansis. 
Leaves oblong or lanceolate. (5) 
(CODE BrurtSEwinoecdckon V onessticd e. 32 Iu siempre DB. taiwaniana. 
IBxuitepentielyewingless eM E Sire dresse mes D. aptera. 
(EEb)Elteavesrterrugineo-Hirsuteseee i-o. duce irre reme rore D. ferruginea., 
Leaves not ferrugineo-hairy, but very slightly beset with minute 
hairs. (5) 
MobeIlexvess palmately. lobates eoe a eue ERR Ee JB. sinensis. 
Leaves slightly lobate or not lobate... .... B. laciniate ver. formosana. 
Begonia aptera Havara Materials for à Flora of Formosa p. 122. Stem 
strong, 40-50 em. high, branched, glabrous, branches divarieate. Leaves long 
petiolate oblique oblong.14cm.long 6 em. broad, obtuse at the apex, base 
very oblique, acute or truncate on the upper side, cordate or auriculate on 
the lower side, auricles 2 em. long as broad, remotely minutely mucronately 
serrate, serras 12 mm. distant, 6-7-nerved, elabrous on both sides, shining 
above, dull beneath, petioles 4 em.long, stipules lanceolate 7 mm. long. 
Fruits capsular depresso-globose, 12 mm.long, 14 mm. broad, «depressed at 
the apex, 3-celled, wings obscure or 0. 
Har. Randaizan, Shintiku, Goshizan. 
Near D. ]Wageneriena Hoox. f. Dot. Mag. t. 4988, from which the pre- 
sent plant differs in having very small wings of the fruits; it resembles 
DB. microplera Bot. Mag. t. 4974, in respect of small wings of capsules, but 
differs from. that in having entire sepals and obscurely and remotely serrate 
leaves. Also near D. Ztoxburgi A. DC. and Z./nflats €. D. Cran&E, but 
differs from the both in having not horned, but quite rounded, fruits. 
