76 MERRILL. 
rounded or somewhat acute, the apex with a slender acumen. 
Racemes simple, terminal, as long as or longer than the leaves, 
the rachis and pedicels rather densely cinereous-pubescent, the 
pedicels 1.8 cm long or less, solitary, rarely in pairs, mostly 1.5 
to 2 cm apart. Flowers white, 5 to 6 cm long. Calyx in bud 
cylindric, in anthesis spathaceous, split to the base down one 
side, 3 to 3.5 cm long, when spread 2.2 cm wide at the base, 
about 1 cm wide near the apex, the apex with three subequal, 
oblong-ovate teeth 3.5 to 5 mm long, densely pubescent on the 
back, the remainder of the calyx slightly pubescent on the back, 
obscurely about 17-nerved. Corolla exserted from the base of 
the calyx and at right-angles to it, the tube about 1.5 cm long, 
somewhat enlarged upwards, and nearly 1.5 cm wide at the apex. 
Corolla-lobes subequal, narrowly oblong, about 4 cm long, 1 cm 
.wide, blunt, wrinkled when dry. Lip as long as the petals, about 
2 cm wide above, apparently more or less cucullate, very much 
wrinkled when dry. Stamen-filament stout, broad at the base, 
when spread nearly 1 cm wide, narrowed upwards, 3 cm long; 
anther oblong, 2,2 cm long, nearly 5 mm in diameter, the con- 
nective not crested; staminodes linear, 1.5 cm long. Ovary 
pubescent, ovoid or obovoid, 3-celled, 5 to 8 mm long. 
Luzon, Bontoc Subprovince, Bauco, on hillsides, altitude about 1,250 m, 
Vanoverbergh 573, June 11, 1910, locally known to the Igorot as calawin. 
A species manifestly belonging in the subgenus ProbolocalyXj the first 
one of this group to be found in the Philippines. It is well characterized 
by its large flowers, crestless anthers, rather lax, racemose inflorescence, 
and in the entire absence of bracts and bracteoles. 
VANOVERBERGHIA gen. nov. 
Calyx in alabastro cylindraceus, demum spathaceo-fissus, apice 
latus, planus, 3-dentatus. CoroUae tubus calyce brevior, lobi 
anguste oblongi, subaequales, 2 antici alte (i ad i) connati. 
Staminodia lateralia, linearia vel filiformia, elongata. Labellum 
petalis anterioribus alte adnatum, bifidum, lobi anguste lineares. 
Filamentum elongatum, concavum ; antherae loculi discreti, 
connective sublatiusculo, concavo, non producto. Ovarium 3- 
loculare, loculis oo-ovulatis; stylus filiformis, stigmate sub- 
ovoideo, ciliolato; nectaria bina, crassa, compressa, erecta. 
Herba altissima, aromatica, e rhizomate crasso. Inflorescentia 
terminalis, racemosa, suberecta vel nutans. Flores in quaque 
bractea solitarii, bracteolis nullis. 
Vanoverberghla sepulchrei sp. nov. 
Planta erecta, robusta, usque ad 4 m alta, glabra, aromatica ; 
f oliis oblongis, usque ad 40 cm longis, longe caudato-acuminatis, 
