Hymejioinyceta', Polyporacese.. Polyporus. 171 



ex ochraceo umbrino, levi, nitido, carne molli secl parca, pallida, 

 margine tenui acutissimo vix refiexo; tubulis adnatis, longe d&- 

 currentibus, albidis, pruina candida (initio?) tectis, brevissimis, 0,5 

 mm. longis ; illis piiei subregularibus ore rotundo perexiguo ; illis 

 stipitis multo latioribus, reticulato-gyrosis ; stipite deorsum incras- 

 sato, 2-3 cm. crasso, longitrofsum costato, albido; sporis fusoideis, 

 15 V 5-6, subhyalinis, grosse guttatis. 



Hdb. ad terram in Capite Bonse-Spei et Natal Africse. — G. 

 Sistotremati affinis. 



POLYPORUS Mich. em. — Syll. VI, p. 55, IX, p. 161, XI, p. 82. 



1. Polyporus involutUS Britz. Hymen. Kunde, II, 1896, p. 8, f. 183. 496 

 — Pileo lateraiiter stipitato, albido v. isabellino, interdum areolis 

 luteo-brunneis, glabro vix fibroso, in senectute rimoso ; stipite 

 albo; poris minutissimis, oculo nudo non conspicuis, crasse tunicatis; 

 carne alba; sporis irregulariter angulosis, luteolis, in cumulo albis, 



6 *^ 4 ; sapore non ingrato. 



Hah. in ericetis in Bavaria. 



2. Polyporus dlminutus Massee Journ. of Bot. 1896, p. 153, t. 357, 497 

 fig. 17-18. — Pileo horizontali, imbricato, conchato molli, carnoso, 

 convexo, margine leviter incurvo, glabro, rubro-aurantraco, 3-4 mm. 

 diam.; carne pallide lutea; hymenio subplano, pileo concolori; poris 

 oblongis, circiter y^ mm. longis, dissepimentis crassis; stipite late- 

 rali, horizontali, leniter curvato, tenui, 2 mm. longo, luteo, pruinoso; 

 cystidiis nullis; sporis hyalinis, levibus, elliptico-oblongis,3-4 v 1 y^. 



Hdb. ad basim truncorum, Yictoria Australiae (Reader). 



3. Polyporus kansensis Ell. et Barth. Erythea 1896, p. 1. — Pileo 498 

 orbiculari, convexo, 10 cm. diam., dilate brunneo, minute ad- 

 presso-squamuloso, margine tenui acutoque ; stipite 10-12 cm. longo 



2 cm. crasso, colore pilei, glabro v. subglabro, basi nigro, subae- 

 quali V. sursum subattenuato ; carne lactea, suberoso-carnosa; poris 

 mediocribus, y^ mm. diam., 2-2 y, mm. longis, rotundis v. sub- 

 angulosis, granuloso-tomentosis, decurrentibus ; sporis albis, ellip- 

 ticis, 6-8^5; basidiis firmis, cylindraceis, 6-8 p. crassis. 



Hab in trunco putrido, Kansas Amer. bor. (Bartholomew). 



4. Polyporus melanopus Fr. - Syll. VI. p. 81. — subsp. Hislngeri Karst. 499 

 Hedw. 1896, p. 173. — A typo differt: pileo majore et crassiore, 



13 cm. lato, 2,5 cm. crasso, pallidiore, glabro, stipite sequali, brun- 

 neo, 3 cm. longo, 2 cm. crasso, porisque duplo triplove majoribus, 

 pallidis, exsiccando luteis, sporis.... 



