428 
tate-serrate, costa translucent; leaf-cells small, round-hexagonal 
to rhombic, thickened-papillate on both surfaces; dioicous; pedi- 
cels roughened; capsule horizontal; annulus compound; cilia 
one to three; operculum long-conic to conic-rostrate; calyptra 
cucullate; spores small, smooth. 
Key to Species. 
Plants small ; leaf-cells rhombic ; leaves not hair-pointed. 
Plants dark green; leaves of terminal branches loosely spreading, two-ranked. 
1, Whippleanum. 
Plants yellow-green; leaves of terminal branches erect-spreading, not tw0- 
ranked, 2. leuconeurum. - 
Plants larger ; leaf-cells round-hexagonal ; leaves hair-pointed. 
Leaf-cells stoutly unipapillate. 3. crispifolium. 
Leaf-cells pluripapillate ; papillae small. 4. Bolandert, 
1. CLaopopium WuIPPLEANvo (Sulliv.) R. & C. 
Hypnum Whippleanum Sulliv. Pac. R. R. Rep. 4: 190. 1856. 
Thuidium leskeoides Kindb. Bull. Torr. Club, 17: 277. 1890. 
Claopodium Whippleanum R. & C. Musc. Am. Sept. 50. 1892. 
In spreading mats, deep to dark green; stem 2-4 cm. long, 
creeping, stoloniferous, flagellate, irregularly pinnately branched ; 
stem leaves triangular to ovate-lanceolate, narrowly acuminate, 
subdecurrent; margins plane, dentate below, sharply serrate 
above ; costa subpercurrent; leaf cells linear-rhomboidal below, 
irregularly quadrate-oblong at basal angles, indistinctly rhombic 
above, usually densely thickened-papillate ; marginal curvilinear, 
echlorophyllose; paraphyllia absent; terminal branches complan- 
ate-foliate, leaves loosely spreading, narrowly lanceolate, indis- 
tinctly two-ranked ; perichetial bracts oblong-lanceolate, filiform 
acuminate, flexuous, denticulate-serrate, inner lightly costate; 
pedicel roughened, subcygneus; capsule oblong-oval, rough, col- 
lum distinct, horizontal, subpendant when empty; annulus early 
deciduous; teeth whitish ; cilia 1~3, nearly or quite as long as 
teeth ; operculum broadly conic, short beaked : spores .009-.011 
matures in spring. 4 
Shady clay ground, rarely on base of trees. Vancouver Island 
(Macoun) ; California, coast ranges (Bigelow, Bolander, Howe)! 
Type from California in Coll, Sullivant, Gray herbarium. 
Ittust.—Sulliv. Pacif. R. R. Re 
port,4: g.9. In part. 1856. 
Exsic.—S, & L. Musc. Bor. Am. ed. 2s = oe a. 
