CRAIB—REVISION OF PETROCOSMEA, 271 
pagina utraque pilis breviusculis subconspicuis conspersa, nervis 
lateralibus utrinque 3-4 obscuris vel subobscuris, margine ciliata, 
petiolo usque ad 4 cm. longo sparse piloso cito plus minusve 
glabrescente suffulta. Inflorescentia e floribus pluribus (usque 
ad 8) pedunculis 3.5-8.5 cm. longis medio brevi-bracteatis breviter 
albo-pilosulis saepe purpurascentibus singulatim gestis. Calyx 
dorso subglaber, sicco plus minusve purpurascens, in segmenta 
5 lanceolata vel lineari-lanceolata apice breviter obtuse acumi- 
nata inter se subaequalia circa 3 mm. longa et 1 mm. lata 
trinervia vel 5-nervia et nervis marginalibus subconspicuis 
tantum nervis infra apicem summum concurrentibus partitus. 
Corollae tubus circa 2.5 mm. longus ; limbus bilabiatus ; labium 
posticum circa 6 mm. longum, bilobatum, lobis oblongis apice 
rotundatis vix 4 mm. longis 3 mm. latis ciliolatis, anticum 
6-7 mm. longum, trilobatum, lobis oblongis vel elliptico-oblongis 
apice rotundatis ciliolatis mediano usque ad 6 mm. longo. 
Stamina fertilia duo, filamentis glabris 1.5 mm. longis, antheris 
2.25 mm. longis apice emarginulatis, connectivo  glabro. 
Ovarium 1.5 mm. altum, pilosum, stylo 6 mm. longo inferne 
incrassato et breviter piloso, stigmate parvo. Capsula 
straminea, 4-5 mm. longa. 
S.W. Szechuan. Mu-li Mountains. Lat. 28° 12’ N. Alt, 
10,000 ft. G. Forrest, 16,859/b! Fl. Sept. 1918. 
jot 
. 
3. P. nervosa, Craib, sp. nov. 
Herba nana, rhizomate brevi crasso. Folia erecta vel sub- 
erecta, quoad formam variabilia, obovata, elliptico-obovata, 
oblato-obovata, oblata vel rotundata, apice rotundata vel sub- 
rotundata, basi cuneata, rotundato-truncata vel cordata, usque 
ad 5.5 cm. longa et lata, viva carnosula, sicco chartaceéo-mem- 
branacea, pagina superiore pilis transverse septatis flaccidis sat 
dense vel fere sparse instructa, inferiore ad costam nervosque 
pilosa, aliter sparsius pilosa, nervis lateralibus utrinque 3 supra 
obscuris subtus latis conspicuis, margine integra vel interdum 
crenulata, petiolo 3-4 cm. vel rarius usque ad 8 cm. longo piloso 
suffulta, Pedunculi numerosi, paulo supra medium parvi- 
bracteati, uniflori, rarius 2—3-flori, circa 6 cm. longi, longius albo- 
pilosi. Calyx dorso breviter pilosus, in segmenta 5 inter se 
subaequalia lanceolata Vel lineari-lanceolata apice obtusiuscula 
3-4 mm. longa 0.75-I mm. lata interdum paucidentata ciliata 
trinervia partitus. Corollae tubus 2.5 mm. longus, limbus 
bilabiatus ; labium posticum 7 mm. longum, paulo ultra medium 
bilobatum, lobis oblongis apice rotundatis ciliatis, anticum 
paululo ultra 6 mm. longum, trilobatum, lobis oblongis apice 
rotundatis circa 4.5 mm. longis ciliatis. Stamina fertilia duo, 
glabra, filamentis 1.5 mm. longis, antheris apice emarginulatis 
