POLYPORUS DECURRENS n. sp.
Mesopous; terrestrial ; pileus nearly circular, 5 cm. in diameter, plane or slightly depressed at the centre, brown or bay-colored, covered with a thin crust which is glabrous except where it is raised at certain points to simulate, when dried, an imbricated sur face ; pores nearly white, forming a layer about 2 mm. deep. de current on the stem and vanishing in faint reticulations just above the base, slightly angular, o.5 mm. in diameter ; dissepiments thin, entice; context white, probably fleshy when fresh, compact, homogeneous, about 7 mm. thick at the centre, gradually becom ing thinner; margins thin, slightly involute when dry ; stem some what bulbous at base, 3 cm. or more long, tapering above, 1 cm.
in diameter at the apex, 1.5 cm. below, somewhat darker than the pores.
Growing in soil on the side of a canon near the Soldier's Home, near Los Angeles, California. Feburary, 1896. Dr. H. E. Hasse. (Communicated by A. J. McClatchie.) A very characteristic species ; the pileus in drying presents a very irregular surface, certain points which have the appearance of slight imbrications remaining more elevated, while the inter mediate spaces become deeply depressed ; it is hoped that more material can be secured of this interesting plant and that its char acters may be noted in the field. The measurements were made from the dry specimen and are naturally somewhat less than in the fresh condition.