yer ee ee eT ih ell Loo “hee” 4 
Ce a ae ee — 
488 ROBINSON. 
2. Pilea humilis sp. nov. 
Species P. peploidei (Gaudich.) Hook. & Arn. valde affinis, sed differt 
cymis pedunculatis, perianthii pistilliferi lobo intermedio multo latiore. 
Cymes glomerulate, borne on peduncles attaining 14 mm in length, but 
rarely exceeding 1 cm, and often considerably less especially in the upper- 
most axils; flowers of both kinds intermixed in at least some of the 
glomerules, the staminate actually found only in the uppermost ones, all 
shortly pedicellate, the pedicels varying in length with the age of the 
flowers, those of the pistillate roughly 0.5 mm long, those of the staminate 
longer: perianth-lobes of staminate flowers 4, oblong-ovate or ovate, 0.8 
mm long, cucullate; filaments 1 mm long; anthers white, about 0.5 mm 
long: perianth-lobes of pistillate flowers 3, the intermediate oval or 
orbicular, 0.7 mm long, sometimes very obscurely serrulate on the margins, 
the laterals suborbicular, 0.1 to 0.2 mm long; ovary compressed-ovate, 
smooth, somewhat exceeding the intermediate perianth-lobe; stigma 
penicillate, very short. 
Entirely glabrous: stems weak, reclining, often branching and rooting 
at the nodes, but apparently never branching at the base, the branches 
ascending, the stems from 4 to 16 cm long: leaves opposite, those of a 
pair equal, the petioles 1 to 2 mm long, the lamina membranaceous, or- 
bicular, orbicular-ovate, or broadly oval, attaining 1 cm in length but 
usually 5 to 6/mm, often shorter, the base rounded or acuminate, the 
margins entire or obscurely sinuate, the apex very broadly and obtusely 
acuminate; trinerved, other venation very obscure, but 1 or rarely 2 ad- 
ditional veins sometimes visible; upper surface with numerous com- 
paratively long cystoliths, usually showing also on the under surface, 
which is also in many cases sparingly punctate ; stipules inconspicuous. 
Luzon, District of Bontoc, Vanoverbergh 761: District of Lepanto, Cervantes 
to Balili, Merrill 4457: Province of Benguet, Mount Pulog, Merrill 6510, For. 
Bur. 16042, 16046 Curran, Merritt, & Zschokke; Baguio, Elmer 6598. NEGROS, 
Canlaon Voleano, Merrill 6912 (type), Phil. Pl. 273 Merrill. ‘ 
It is with the utmost diffidence that this is separated from P. peploides, especial- 
ly in view of the very wide distribution credited to that species (Galapagos Islands 
to India), but every description available here indicates it as differing in the 
characters above noted; there seem also to be characters in the leaves but these 
are small and variable. The Philippine plant is a high-mountain form, ranging 
iad 
Pa 
from 1250 to 2850 m. P. johniana Stapf is also allied, but much less closely to’ 
either of these species than they are to one another. 
3. Pilea benguetensis sp. nov. 
Suffruticosa: inflorescentiis axillaribus, laxe glomerulo-cymosis ; flor- 
ibus pistilliferis sepalis 3, inaequalibus, ovario verruculoso: foliis parum 
inaequalibus, lanceolatis>subcaudatis, saepe falcatis, triplinerviis, dentatis. 
Inflorescences axillary, monoecious, 2 to 5 cm long, branched, the 
peduncles 1 to 1.5 cm long, and exceeding the petioles, the glomerules 
not confluent except at the apex: staminate flowers with 4 sepals 1.5 mm 
