Haynes: THE GENUS SPHAEROCARPOS 237 
nence 12 win height near the middle of the outer face = each spore, 
this becoming shriveled at maturity ; spores 85-138 win maximum 
diameter, yellow to opaque brown and regularly sieclae: coarsely 
granulate, meshes large, 13-26 w, the ridges wrinkled and sinuous, 
forming elevations at points of intersections of meshes, the spores 
after separation showing a conspicuous coarsely lobed basilar 
margin. [PLATES 29 and 30.] 
Hasitat: Growing on damp sandy soil, in gardens, etc. 
Type Locaity: Jacksonville, Florida. 
DistrisutTion: Florida and Georgia. 
Exsicc: Hep. Amer, xo. 67 (as Sphacrocarpus terrestris Mich.) 
and no. 62 (as Sphaerocarpus Donnellii Aust.). 
5. SPHAEROCARPOS cRISTATUS M. A. Howe, Mem. Torrey 
Club 7: 66. p/. roo. f. 1-8. 1899. — Stephani, 
Bull. Herb. Boiss. '7: 657. 1899 
Archegonial thallus suborbicular, 3-8 mm. in diameter, pale 
green when dried, marginal lobes orbicular, ascending, marginal 
cells generally quadrate, 26-45 « ; archegonial involucres 0.85-1.2 
mm. high, sessile, thickly aggregated, at first cylindrical, soon 
becoming subglobose or obovoid, rounded at apex, orifice small, 
cells at orifice creniform, 26-40: antheridial thallus cuneate, 2 
mm. in diameter, often once furcate, with oblong-ovate lobes ; 
antheridial involucres 498-581 win height, about 2.5 times their 
diameter: capsule 500-800 yt in diameter, the bulbous foot remaining 
attached to capsule; spores separating long before the maturity of 
the capsule, never persisting in tetrads, compressed, rounded- 
biconvex or sometimes concavo-convex, yellowish brown or pale 
yellow, 52-80 » in maximum diameter, cristate, the crests sinuous, 
4-7 « high, subcrenulate, mostly radiating from near the middle of 
each of the two faces, often 1-3 times furcate, sparingly anastomos- 
ing, forming sometimes 1-6 (rarely more) completely closed meshes 
in most cases near the middle of the face. [PLATE 31.] 
Hasrrat: On flat compact soil in meadows and beside paths, 
Type Locatity: Near Stanford University, Santa Clara County, 
California. 
Distripution: California. 
Exsicc.: Hep. Am. zo. 160 (as S. terrestris, var. californicus 
Aust.) [.S texanus], a little of which is intermingled in some of the 
sets in the herbarium of the New York Botanical Garden). 
This remarkable species is allied to Sphaerocarpos hians from 
Washington, from which it differs in having spores that separate 
