365 
adpresse brunneo-setulosi. Caly# extra sparse adpresse brunneo- 
setulosus, 1 cm. longus, lobo postico lanceolato-deltoideo 4 mm. 
longo 2:5 mm. lato, lateralibus late lanceolatis vix 3-5 mm. longis 
1-75 mm. latis, infimis angustius lanceolatis 2-75 mm. longis 
0-8 mm. latis, lobis omnibus hydathodo subobtusis intra setulis 
perpaucis brevibus albis instructis margine pilis longiusculis 
transverse septatis distanter ciliatis, tubo postice 6 mm. antice 
m. lo 
longis 3 mm. latis constitutum, anticum circa 7 mm. longum, 
3-lobatum, lobis inter se subaequalibus oblongis apice rotundatis 
mm. longis 35 mm. latis. Stamina duo antica fertilia 
filamentis 5-5 mm. supra corollae tubi basem insertis complanatis 
rectis 2-5 mm. longis glabris, antheris 15 mm. longis glabris 
cohaerentibus, loculis divergentibus rimis cito confluentibus; 
stamen posticum omnino deficiens, lateralibus ad staminodia 
circa 1:25 mm. longa glabra redactis. Discus vix 0°5 mm. altus. 
Ovarium in calycis tubo inclusum, 3 mm. altum, superne pauci- 
setulosum, stylo stigmate incluso 9 mm. longo breviter subsparse 
setuloso, stigmate obliquo emarginato. Capsula 5-7 mm. longa, 
in calyce inclusa, valvis demum ad summum apicem lberis. 
Gorge below Ban Kaw, c. 195 m. Flowers white with purple 
lines in throat; on damp rocks in jungle, Kerr 2196. 
The plant here Mige Ait as the type of a new genus, though 
undoubtedly closely allied to Didymocarpus, could not be satis- — 
factorily ba in that genus or even in the genus formed by the 
ties. The habit, short fruit and calyx, separate it from any of 
the types at present represented in Didymocarpus. In degree— 
though not in kind—of divergence of habit and in its calyx 
Damrongia bears the same relationship to Didymocarpus as 
Dichiloboea to Boea. 
The genus has been named in honour of H. H. Prince Damrong, 
who, himself interested in scientific pursuits, has done so much 
for the advancement of education in his country. 
Petrocosmea Kerrii, Craib {Gesneraceae-Cyrtandreae ] ; a 
speciebus sinensibus foliis magnis facile distinguenda. 
erba acaulis; rhizoma satis crassum, breve, radicibus per- 
miultis rigide fibrosis. Folia rosulata, ovato-lanceolata, oblongo- 
elliptica vel rarius oblonga, interiora saepe suborbicularia, 
; : t 
glandulis nitidis satis numerosis ornata, nervis lateralibus 
