﻿The Mycologic Flora of the Miami Valley, 0. 



THE MYCOLOGIC FLORA OF THE MIAMI VALLEY, 0. 



By A. P. Morgan. 



[Continued from vol. vi., p. 199.] 



ORDER II.— POLYPOREI. 



Hymenophore inferior, porose. Pores bearing the basidia and 

 cystidia on their inner surface; basidia 4-sporous at the apex. 



TABLE OF GENERA OF POLYPOREI. 



A. Tubules forming a distinct stratum. 



1. Boletus. — Tubules easily separable from one another. 



2. Polyporus. — Tubules not separable from each other. 



B. Tubules sunk in the substance of the pileus. 



3. Trametes. — Pores round, obtuse, entire. 



4. D^dalea. — Pores sinuous, labyrinthiform. 



5. Favolus. — Pores alveolar, elongated. 



C. Pores superficial. 



6. Merulius. — Pores formed by reticulate folds. 



7. " Porothelium. — Pores immersed in discrete warts. 



8. Solenia. — Pores in discrete tubules. 



Genus I. — Boletus, Dill. 

 Tubules in a porose stratum without a tram a, easily se parable from 

 each other, and from the hymenophore. Spores normally fusiform. 

 Fungi terrestrial, fleshy, putrescent, stipitate; the stipe central. 



Series I. — Euchroi. 



Tubules colored from the first, not white or gray. 



A. Tubules ferruginous. 



1. B. piperatus, Bull.— Pileus convexo-plane, glabrous, a little viscid, 

 reddish-yellow or brownish. Stipe slender, even, fragile, concolorous. 

 compressed, the base yellow. Tubules decurrent, ferruginous; the 

 pores large, angular. Spores brown, elliptic, .007 — .008X.004 mm. 



On the ground in open woods, in autumn; rare. Pileus 1-3 in. 

 broad, stipe 1-3 in. long, and of an inch thick. This species is at 

 once distinguished by its peppery taste; the pileu-s is moist or even 

 viscid, when young; the flesh is yellowish. 



