110 THE GASTEROMYCETES OF THE UNITED STATES AND CANADA 



mouth and smooth outer surface. Lloyd now considers his G. Morganii a synonym of 

 G. Archeri Berk. (Hooker's Fl. Tasm. 2: 264, pi. 183, fig. 9 bis. 1860) but compared 

 with American G. Morganii, the lobes of G. Archeri are more slender and tapering, and 

 the outer surface differs in not being cracked. The fleshy layer looks quite different 

 and has a hard, cartilaginous appearance with few cracks, instead of the softer, more 

 leathery appearance of the rimose fleshy layer in G. Morganii. The spores are the same. 

 The type material of G. Archeri at Kew consists of two separate mounts of one open 

 plant each, both from Tasmania (Archer, coll.). The plants have long, tapering and 

 twisted lobes, rather pliable ; fleshy layer thin, continuous ; outer layer with texture of 

 leather, not cracked in radial lines; spore sac deep brown, glabrous, mouth apparently 

 as in G. Morganii, but somewhat obscured by pressure. Spores (of No. 28) spherical, 

 regularly warted, 3.4-4yu thick (pi. 116, fig. 14). 



Illustrations: Lloyd. The Geastrae, figs. 31-36. 



Morgan. North Amer. Geasters, fig. 3 (as G. striatus). 



Delaware. Commons, coll. (N. Y. B. G. Herb.). 



New York. Chippewa Bay. Phillips, coll. (Path and Myc. Herb.). Spores minutely warted, 3. i-Aii 



thick. 

 Massachusetts. Peabody. Mackintosh, coll. (Lloyd Herb.). Fine lot with buttons. 

 Ohio. Underwood, Morgan, Lloyd and James, colls. (All in N. Y. B. G. Herb.). 



Columbus. Brewer, coll. (Lloyd Herb.) . 



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



Dinwood. Lloyd, coll. (Lloyd Herb.). 

 Indiana. Underwood, coll. (N. Y. B. G. Herb.). 

 Illinois. Urbana. McDougall, coll. (U. N. C. Herb.). 



Geaster saccatus Fr. 



Plates 65, 115 and 117 



Buttons gregarious, not caespitose or crowded, 7-12 mm. thick, 7-14 mm. long, 

 including point, when fresh, entirely subterranean or half exposed, abruptly pointed by a 

 short small mucro about 1.5 mm. long; surface nearly clean, tomentose to spongy-felted, 

 ochraceous to buff. Rays about 5-7, upright or revolute, the base strongly saccate. 

 Fleshy layer when fresh pallid, faintly or distinctly pinkish, about 0.8 mm. thick. 

 Spore sac light or dark drab, glabrous, dull; peristome, broadly conical, definite, sur- 

 rounded by a paler depression or much paler all over (at times nearly pure white) ; 

 mycelium attached only as a basal strand, the submerged part of the plant, which is 

 more often all in the button, not binding trash to it, but coming up nearly clean, the 

 mycelium forming a powdery-looking, mouldy layer about 1 cm. from the surface. 



Spores (of No. 7350) spherical, minutely asperulate, 3. 5-4. 3m- 



In Chapel Hill we find this only under cedars, but the Florida collection was under 

 oaks, though otherwise exactly like the others, the whiter peristomes being matched in 

 some of our collections. Our plants are very small, only 6-15 mm. wide when open in 

 the dry state, and they look most like G. mirabilis. That is separated by the strictly 

 epigeal and crowded habit, absence of point, strigose surface and entirely different 

 mycelium. The tropical form of saccatus may run much larger than ours, but there are 

 intermediate sizes. What we are calling the northern form of saccatus runs somewhat 

 larger than ours and has much smaller spores. 



There is still some doubt as to what the true G. saccatus is. As Fries described it, 



