LYCOPERDACEAE 91 



District of Columbia. Lloyd, coll. (l T . S. Natl. Herb.). 

 New York. DnionporL Haiper, coll. I X. V. B. G. Herb.). 



Wisconsin. Eagle Heights. (Univ. Wis. Herb, and U. N. C. Herb.) Spores subsphcrical, nearly 

 smooth, 3-3.$^. Capillitium very pale and easily collapsing. 



Lycoperdon oblongisporum B. & C. 



Plates 58 and 113 



Plants globose or depressed-globose, with a distinct cord-like root. Cortex of 

 minute appressed fibers arranged in groups so as to form whitish, scurfy spots on the 

 pale, dull brown surface of the inner peridium, which is tardily exposed. Gleba oliva- 

 ceous to dark olive brown; subgleba none. 



Spores (of Xo. 497) oval to subspherical, deep olive brown, smooth, 3-4 x 4.3-5.5//, 

 with a large oil drop and a prominent mucro about 1/u long. Capillitium threads long, 

 delicate, branched, up to 6.5/z thick, considerably pitted in places. 



This little plant was originally described from Cuba, and is quite rare in this 

 country, only a few scattered collections having been noted before and none from this 

 state. However, it agrees so well with the descriptions of both Morgan and Lloyd for 

 this species that we feel quite sure our determination is correct. The plants look like 

 Lloyd's figures, and the spores are shaped like those shown on his plate 65, figs. 9-12. 

 The species shades into L. pusillum by intermediate forms. We are entering No. 

 5312 as this species on the ground of its absolutely smooth spores that are not perfectly 

 spherical. Xo. 5211, which we are entering under L. pusillum, is also intermediate. 



Illustrations: Hollos. 1. c, pi. 21, figs. 36-41. 

 Lloyd. As cited above. 



497. In poor soil on campus and in Arboretum, Oct. 1, 1912. 



5312. In a field of Sudan grass, July 8, 1922. Plants up to 2.3 cm. thick; subgleba none; gleba gray- 

 brown; the spores themselves brown with a faint olive tint, smooth, spherical to slightly sub- 

 spherical with the proximal end pointed, 2.8-4m thick. Capillitium threads pitted, up to 6/i 

 thick. 



7116. On ground in a pasture, September 9, 1923. Spores 3.4-3.7 x 4-4. 4^. 



Asheville. Beardslee, coll. 



Lycoperdon pusillum Batsch 



Plates 58 and 113 



Plants subglobose or flattened, small, rarely up to 2 cm. broad, pinched to a cord- 

 like root; surface variable, usually almost smooth to naked eye, but with a lens it is 

 seen to be covered with a fine fibrous flocculence that seems to flatten down like drying 

 suds and separates into very small patches, giving a maculated or areolated appear- 

 ance, or rarely this flocculence takes the form of small soft spines; again the surface 

 may be entirely covered with a delicate powder or more rarely minute compact warts. 

 Color when young pure white, then clay color or dull olivaceous yellow, and often 

 dark brown in age. Gleba passing through yellow to greenish yellow, becoming at full 

 maturity brownish olive or grayish olive-brown to deep coffee-brown without a tint of 

 olive, filling the entire peridium; that is, there is no subgleba. The peridium before 

 maturity is thick, up to 15 mm., but rapidly becomes extremely thin as it dries during 



