100 Journal of the Mitchell Society [September 



2. Laccaria laccata (Scop.) Berk. 



Plates 1, 8 and 33 



Cap about 3 cm. broad on the averap:e, rimniner up to 6.5 cm., 

 deeply depressed in center and often irrejrular and split, hygropha- 

 nous, surface light tan or reddish buff or huffy cinnamon when not 

 soaked, a deeper reddish-ochraceous -when soaked, rarely striatulate, 

 squamulose-scurfy or only somewhat channelled and fibrous. Flesh 

 very thin, tough and elastic, a light pink color, taste slightly woody, 

 odor none. 



Gills broad, up to 1.2 cm. wide, not croAvded, sub-distant or dis- 

 tant, thickish and wavy, entire, or at times fragmented and irregular, 

 notched at the stem, slightly decurrent by a tooth, pinkish with a 

 tint of lilac. 



Stem 2.5-9 cm. long, 3-6.5 mm. thick, sub-equal or irregular, at 

 times bull)Ous, hollow, tough, elastic, fibrous, color of cap with a tint 

 of flesh. 



Spores (of No. 854) spherical, echinulate, 6.6-7. 6/x in diameter not 

 including the spicules. Basidia (of No. 5118) 7.4-8/x thick, 4-spored; 

 hymeniuin about 48/a thick, with a few crystals; threads of the gill 

 flesh 3.7-7/x thick, constricted at the septa, and parallel in section. 



The species is common in pine and not rare in deciduous woods, 

 growing often in populous colonies and sometimes in fairy rings. 

 It is distinguished from L. tortilis by stouter form, thinner, closer 

 and more regular gills, usually non-striate cap, and preference for 

 upland woods. It differs from L. amethyst ea in absence of deep pur- 

 plish color and thinner, closer and more regular gills. 



For other illustrations see Cooke, Ills. Brit. Fungi, pi. 139 ; Hard, 

 Mushrooms, figs. 76 and 77; Mcllvaine, Am. Fungi, pi. 24, fig. 10. 

 1900; Murrill, Mycologia 3: pi. 40. fig. 4. 1911; Peck, Kept. N. Y. 

 St. Mils. 48: pi. 25, figs. 1-13. 1895. 



854. Growing abundantly in a large fairy ring about twenty feet in diameter 



under pines, September 18, 1913. 

 1413. Under pines near Piney Prospect, October 24, 1914. 

 1435. Under pines near Piney Prospect, October 28, 1914. Spores spherical, 



echinulate, 6.8-7.6|x. 

 1495. Under pines, Glen Burnie Farm, December 8, 1914. 

 2960. On ground in pine woods, December 3, 1917. 

 2993. On ground in pine woods, March 25, 1918. 



3176. Low place in deciduous woods east of cemetery, October 3, 1918. Spores 

 6.3-8.5/x thick. 



