156 THE GASTEROMYCETES OF THE UNITED STATES AND CANADA 



stem 1-3 cm. long, 3-6 mm. in diameter, cylindrical, firm, slightly bulbose, hollow or 

 stuffed, often with considerable remnants of the outer peridium attached: capillitium 

 lightish yellow, sparingly branched, septate, swollen at joints, 4-7/i wide, rather thick- 

 walled: spores ferruginous, subglobose, smooth, or irregularly ridged in the older 

 specimens, owing to the shrinking of the inner substance, short pediceled, 4-5/i in 

 diameter." 



Illustrations: Lloyd. Myc. Works, pi. 83, figs. 1-2. 

 White. 1. c, pi. 34, figs. 4-6. 



Tylostoma Lloydii Bres. 



This species, known only from Cincinnati, Ohio, is near T. poculatum, from which 

 it seems to be distinguished only by its dark color and long stem. We have not seen 

 it and give below the original description by Bresadola (in Petri, Ann. Myc. 2: 423. 

 1904; see also Lloyd, The Tylostomeae, p. 22) : 



"Outer peridium membranaceous, brown, soon falling away in pieces and leaving a 

 concolorous zone at the base; inner peridium subglobose, papery, smooth, pale, sub- 

 cinereous, flattened at the base and deeply umbilicate, about 1 cm. broad, 8-9 mm. 

 high, mouth white, oblong, 2 x 1§ mm., slightly protruding, like a subfimbriate, tomen- 

 tose circle, about 0.5 mm. broad, defined; stem hollow, fibrous-subwoody, brown, 

 covered all over with rather thickly set, at length deciduous scales, apex tapering and 

 sunken in the cup of the peridium and free from it on the sides, considerably thickened 

 below and furnished with a pale, subvolviform, fimbriate membrane at the base, 6-7.5 

 cm. long, 2.5-3 mm. thick at top, 4-5 mm. at base, white within; gleba subochraceous; 

 spores smooth, often inequilateral, 3.5-4 x 3.5/u; threads of the capillitium thick-walled, 

 not easily separating into joints, hyaline, 3-9/i thick." 



Illustrations: Bresadola in Petri. Ann. Myc. 2: pi. 6, fig. 4, and one text nguie. 1904. 

 Lloyd. Myc. Works, pi. 82, figs. 5-8. ■ 



Tylostoma campestre Morg. 



Plates 83 and 119 



Spore case subglobose, about 1-1.8 cm. thick; outer peridium a sandy coat which 

 wears away except for a basal disk exposing about two-thirds or three-fourths of the 

 pale grayish to pale brownish, smooth or somewhat pitted, inner peridium. Mouth 

 area a distinct, spongy, somewhat elevated disk which opens in the center by a circular 

 or lacerate mouth to liberate the spores. Stalk 1.7-5.5 cm. long and 3^.5 mm. thick, 

 usually longitudinally sulcate when dry, and shrinking away from the outer peridium 

 so as to leave a distinct collar around its apex; surface layer dark brown, lacerate-scaly 

 over most of the area, white within and with a central cottony cylinder as is usual in 

 the genus; base expanding into a sandy bulb of moderate size. 



Spores (of No. 861 Ip) pale, spherical or slightly oval, minutely warted, 4.5-6.8/* 

 or if elongated rarely up to 7.2^. Capillitium threads septate and slightly swollen at 

 the joints, irregular and constricted at places with the lumen closed by the thickening 

 of the walls, 3-6. 5/* thick. 



This species is a northern and western plant, and we have not seen specimens of 

 it from east of the Mississippi. However, as it occurs on the shores of Lake Erie in 

 Canada we include it as eastern American. As Lloyd says, this is the American 

 representative of T. granulosum Lev. of Europe, of which T . fimbriatuni Fr. is a probable 

 synonym. We have carefully examined the spores of two typical examples of T. 



