120 THE GASTEROMYCETES OF THE UNITED STATES AND CANADA 



showing the whitish, fibrous layer and blackish fleshy layer; spore sac sessile and largely 

 enclosed by the strongly hygroscopic lobes. The mouth area is obvious as a silky 

 zone, the center more or less elevated and lacerate. The spores, which are spherical, 

 distinctly warted, 3.7-4.5/* (pi. 116, fig. 13) are distinctly those of mammosus and not of 

 floriformis, which are larger (5-7/z). Hollos considers G. argenteus the same as G. 

 floriformis, but he apparently had not seen authentic specimens. 



Geaster argentatus Cooke and Massee from Brisbane, Australia, is closely related. 

 A part of the type collection is at the New York Botanical Garden. It has a definite 

 silky peristome; spread of rays 3 cm., the outer surface scurfy and ochraceous at first, 

 then smooth and gray to buffy gray; fleshy layer reddish brown; spore sac 12 mm. 

 thick, finely furfuraceous to sub-granular, gray-brown to reddish brown, sessile. Spores 

 dark, mostly spherical but some irregular, 4.5-6^ (pi. 116, fig. 17). Other plants from 

 Kew Herbarium labelled G. argentatus Cooke from Victoria, Australia (not types), 

 now pasted on the same sheet with G. argenteus, are quite different from the types, and 

 we take them to be G. Drummondii, which they resemble in all important respects: 

 mouth sulcate, spore sac granular to subasperate. 



Illustrations: Destree. 1. c, pi. 9, fig. B. 



De Toni. 1. c, pi. 2, fig. (as G. lugubris). 



Hollos. 1. c, pi. 10, figs. 1-3 (asG. corallinus). 



Kalchbrenner. Gasteromycetes novi vel minus cogniti, pi. 5, fig. 3 (as G. lugubris). 1884. 



Lloyd. The Geastrae, figs. 16, 17. Also pi. 98, figs. 7-11. 



Micheli. Nov. Pi. Gen., pi. 100, fig. 3. 



Smith. Grevillea2: pi. 19, fig. 1. (Reproduced from Gardener's Chronicle.) 



Vittadini. Monog. Lycoperd., pi. 1, fig. 9. 



North Carolina. Flat Rock. Memminger, coll. (Lloyd Herb., as G. floriformis). 



New Jersey. Ellis, coll. (Lloyd Herb.). 



Ohio. Cincinnati. Lloyd, coll. (Lloyd Herb.). 



Wyoming. Cody. Davis, coll. (Lloyd Herb.). 



Pitchfork. Davis, coll. (U. N. C. Herb.). Spores 3.8-5^. 

 Iowa. Iowa City. Teeters, coll. (Lloyd Herb.). 



Colorado. Clements, coll. (Path and Myc. Herb.); also Demetrio, coll. (N. Y. Bot. Gard. Herb.). 



North Dakota. Fargo. Brenckle, coll. (Path, and Myc. Herb., Lloyd Herb., and U. N. C. Herb.). 



Note in Lloyd Herb, says "epigean." The plants show pointed buttons with yellow, spongy 



surface and some adhering humus, mouth distinct. Spores (of No. 2S4) minutely warted, 



3.6-4.4 M . 



Canada. (New York Bot. Gard., as G. umbilicatus.) 



London. Dearness, coll. (Lloyd Herb, and U. N. C. Herb.). 

 Nova Scotia. Halifax. Crossland, coll. (Lloyd Herb.). 



Geaster arenarius Lloyd 



Plates 68, 115 and 116 



Lloyd describes G. arenarius (The Geastrae, p. 28) as follows: 



"Exoperidium subhygroscopic, cut to five to ten segments; drying usually with 

 segments incurved. Mycelial layer closely adnate with adhering sand. Fleshy layer 

 closely adnate, light color, not rimose. Inner peridium subglobose, with a very short 

 but distinct pedicel in some specimens, in others appearing sessile. Mouth even, 

 conical, acute, definite and usually darker colored than the remainder of inner peridium. 

 Columella indistinct. Spores globose, rough, 3-4yu." 



