LONGYEAR ON NEW SPECIES OF MICHIGAN FUNGI. 59 



<llobose, ecliinnhito, G-8 microns. Growing on naked or mossy soil in 

 111. land woods. Leslie, July 24, 1900. 



The few specimens found were growing in company with a small 

 form of L. suhdulcis Fr. which the species much resembles and from 

 -which it is distinguished by its more distant, broader gills and clear milk. 

 It is closely rehited to L. s(n-if!uus Fr., but is separated by its smaller 

 size, umbonatc i»ileus, and more distant gills. The latter species, more- 

 over, is described as growing in moist or damp places. 



:!. Lactarius brevipes n. sp. I'ileus 1.5-3 cm., broad, convex when 

 young, becoming plane and depressed, margin inrolled, dry, whitish- 

 pruinose, reddish tan when rubbed, obsoletely zoned, ilesh white; gills 

 adnexed, very narrow, pale tawny, thin, sometimes branched. Stem 

 Ml.'.l (111. long, about two-thirds as broad, equal or tapering downward, 

 smooth, white, solid; sjiores globose, echinulate, H microns. Milk white, 

 becoming light yellow on exposure to air, slowly acrid and astringent to 

 taste, odorless. Growing on moss-covered ground in oak woods. Pleas- 

 ant Lake, July 27 and 30, 1900. 



On account of the short stem the pileus appears to rest on the ground. 

 The species seems somewhat closely related to L. thejogalus. Bull, but 

 is much smaller, while the dry instead Of viscid pileus and the very short 

 stem serve to distinguish it from that species. 



4. Annularia mammillata n. sp. IMleus 1.7 cm. broad, plane with 

 margin a little elevated when mature, disk raised in the form of a 

 prominent mammilliform umbo, flesh very thin, soft, surface minutely 

 roughish, whitish except the umbo which is lemon-yellow; gills free, 

 ventricose, broad, thin-, somewhat crowded, 3 mm. broad, pale flesh 

 color; stem 3.5 cm. long 1.5 mm. thick at apex, gradually enlarging 

 to the base which is 3 mm. thick, smooth above and silky below the 

 ring, white; ring membranous, persistent, white; cystidia spindle-shaped, 

 swollen in the middle 20x50 microns, spores subglobose, smooth, pale tlesh 

 color 5-G microns. On decaying logs in woods. Greenville, July IG, 1900. 



This little agaric is evidently rare, only one specimen being found, 

 and is especially interesting because no species of this genus seem to 

 have been thus far recorded as occurring in this country. 



The striking character of the specimen is the prominent yellow umbo 

 which rises abruptly from the flattened pileus. 



5. Leptonia rosea n. sp. Pileus 3-3.5 cm. broad, flesh thin, convex, 

 obtuse and depressed at the disk, not striate, roughened with brownish 

 fibrils on a roseate ground color, disk darker; gills adnate with a slight 

 tooth, G mm. broad, whitish thin flesh-color, not crowded; stem 7-8 cm. 

 long, slender, slightly thickened at apex and base, roseate, base whitened 

 with mycelium, cartilaginous, smooth, suft'ed; spores flesh color, angular, 

 7-8x10-12 microns. 



Burnt soil on a sandy hillside, Kent county, July 14, 1900. 



KXI'LAXATION OF ILLrSTRATIOXS, PLATE I. 



Fig. 1. Lepiota pyanozonata, specimens natui-al size, attached to decaying wood ; section of 



a pilous : three spores magnified. 

 Fig. 2. Lactarius snbserifliuis, three specimens, natural size, growing on mossy soil ; three 



spores magnified. 

 Fig. ?>. Lactarius brevipes, two specimens, natural size, growing among mosses ; three spores 



mngnified. 

 Fig. 4. Annularin mnniniillata. a specimen, natural size; section of same; three spores and a 



basidium highly magnified. 

 Fig. 5. Leptonia rosea, one specimen, natural size ; section of pileus ; three spores magnified. 



