198 ART. I.—B. HAYATA: 
que paucissime ciliolata, supra ad costas impressas hirsuta, subtus 
costis prominentibus paucissime hirsutis, vel glabris, utraque 
pagine glabra, venis et venulis utraque pagine longitudinaliter im- 
presso-reticulatis, exsiccato supra pallido-viridia, subtus albo- 
pallidissima, ad insertionem petiolorum abrupte 1eflexo-inclinata, 
petiolis 5 mm. longis, supra plani svel subsulcatis hirsutis, subtus 
glabris. Cyme pauciflorate, floribus 2-3, axillares, solitarie longe 
pedunculate, pedunculis gracilibus, 2-3 cm. longis, floribus pedicel- 
latis, pedicellis glabris, 4mm. longis, bracteis acuminatis obtusis, 
extus hirsutis. Flores patentes, 8 mm. in diametro. Calyx patens, 
5-fidus, segmentis triangulari-ovatis, acutis, margine ciliolatis, 3 mm. 
longis, inter segmenta glanduliferis, glandulis punctiformibus. 
Corolla patens subrotata, 5-fida, segmentis elongato-ovato-triangu- 
laribus apice obtusis, 3 mm. longis, 14 mm. latis, extus glabris, 
intus brevissime pubescentibus. Corolla squamz 5, carnose, tubo 
staminali connate. Stamina tubo corolle affixa, filamentis in 
tubum $ mm. longum connatis, antheris erectis 4 mm. longis, mem- 
brana inflexa terminatis. Pollinia in quoque loculo solitaria, parva, 
globosa, caudiculis horizontalibus affixa. Stigma medio vertice 
umbonatum. 
Has. Taito: Sumegan, ad 9000 ped. alt., leg. T. Kawaxamr 
et U. Mort, Jan. 1908, (No. 4551). 
The present plant is distinct from any species of the genus 
known to us. The nearest congener is 7. tenerrima Wicutr which 
is however perfectly distinct from our plant. It is named in honour 
of Mr. K. Osuma, Ex-Civil Governor of Formosa, by whose 
graciousness extended towards myself, I was able to visit the 
principal herbaria of the West. 
Tylophora stenoloba Wars. in Feppe Rep. ILI. (1907) p. 339. 
