338 ART. I.—B. HAYATA: 
persistentibus 5 cm. longis. Panicule laterales quasi-axillares 
validiuscule recurve ramosse, ramis 5-6 divaricatis validiusculis 4 
em. longis, bracteis minutis squamosis triangularibus. Flores parvi 
1 cm. in diametro breve pedicellati flavo-viridescentes intus purpuras- 
centes, pedicellis 2-3 mm. longis transverse divaricatis. Sepala libera 
equalia patentia carnosula obovato-oblonga 5 mm. longa 35 mm. 
lata apice obtusa. Petala sepalo angustiora 4 mm. longa 1% mm. 
lata apice rotundata postice reflexa. Labellum basi columne , 
affixum continuum patens basi calearatum, (calcari breve cylindraceo 
3mm. longo 14 mm. lato, ore antice lamina longitudinali semi- 
diviso, ad os postice latereque calloso-appendiculato), 3-lobatum, lobis 
lateralibus ad latus calcaris brevis auriculiformibus, lobo medio 
latiusculo 3 mm. longo 5 mm. Jato semiorbiculari apice rotundato 
margine denticulato medio late calloso-ruguloso patente. Columna 
breve oblonga subteres 2 mm. longa. Clinandrium truncatum. 
Has. Formosa, leg. T. Ucutyama, 1899. 
Near S. formosanus Rotre, from which the present plant is 
distinguishable by the labellum which is trilobed, two lateral lobes 
being very small, and the terminal one very large, broad, and denti- 
culate on the margin. In S. formosanus R., the middle lobe of 
the lip is again trilobed, while in this new species the middle lobe 
is not lobed, but minutely denticulate. The present genus is se- 
parated from Saccolabium (which has no plate in the spur), by 
the longitudinal plate dividing the mouth of the spur; also from 
Cleisostoma which has a transversal plate covering the mouth of 
the spur. 
Cleisostoma BLUME. 
Cleisostoma breviracema Hayata sp. nov. Herba epiphytica, 
