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On the roof of an old copper mine.

May, 1880.

In Fasc. 1, No. 33, as Jg. Starkii.

*Dioica* cladocarpa minuta, fulva vel pallide badia,
dense depresso-caespitosa. *Caules* ¼-pollicares flexuosi,
radicellis crebris intexti, sat validi, parce ramosi,
ramique subhyalini foliosi. Cellulæ caulis 8 in diame-
tro, corticales sub 15-seriatae internis paulo majores.
*Folia* dissita, squarrose fere patentia, minuta, sub-
cuneata, obscure carinata, profunde (ad ½) biloba, sub-
integerrima. sinu acuto obtusove angulum rectum
includente; lobis ovatis lanceolatisve, basi 2—4 cellulas
latis, subacuminatis cellulâque unicâ conicâ (duplo
longiore quam latâ) persæpe incurvâ apiculatis; *cellula*
minutæ oblongæ pellucidæ insigniter guttulatæ, pariete
ad angulos præcipue incrassato, cuticula asperula.
*Foliola* variabilia, inferiora sæpe minuta obsoletave,
superiora foliis subduplo breviora lanceolata, interdum
cum folio proximo in folium trilobum connata,
suprema raro biloba foliisque vix minora. Ramulus
? brevisimus; bracteæ 3-jugæ, foliis duplo longiores,
in flore sterili liberæ, paulo ultra ½ bilobæ, parce spinu-
loso-denticulatæ, lobis ovatis acuminatis. Genitalia
pauca. Cætera haud visa.—*Folia* '125—'15 *longa*, '125
*lata* (inter lobulorum apices mensa); c 1/70—1/60; br '25 mm.
R. SPRUCE. On Cephalozia, p. 96, (Malton, 1882.)

Yale University Herbarium

YU.169525