Haynes : The genus Sphaerocarpos 227 



nence 1 2 /x in height near the middle of the outer face of each spore, 

 this becoming shriveled at maturity ; spores 85-138 it in maximum 

 diameter, yellow to opaque brown and regularly areolate, coarsely 

 granulate, meshes large, 1 3-26 tt, 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.] 



Habitat : Growing on damp sandy soil, in gardens, etc. 



Type locality : Jacksonville, Florida. 



Distribution : Florida and Georgia. 



Exsicc : Hep. Amer. no. 61 fas Spliacrocarpus terrestris Mich.) 

 and no. 62 (as SpJiaerocarpus Domicilii Aust.). 



5. Sphaerocarpos cristatus M. A. Howe, Mem. Torrey 

 Club 7 : 66.pl. loo.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 n: antheridial thallus cuneate, 2 

 mm. in diameter, often once furcate, with oblong-ovate lobes ; 

 antheridial involucres 498-581 /j. in height, about 2.5 times their 

 diameter: capsule 500-800 11 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 /x 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.] 



Habitat : On flat compact soil in meadows and beside paths. 



Type locality : Near Stanford University, Santa Clara County, 

 California. 



Distribution : California. 



Exsicc. : Hep. Am. no. 160 (as 5. terrestris, var. californicns 

 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 Mans from 

 Washington, from which it. differs in having spores that separate 



