70 TiymenomycetPB, Agnricaccii", Leucospora;, Plevirotus. 



albis, acie flava deutata; sporis albis, hyalinis, levibus, sph.iToi- 

 deis, 4-5 ;j., cr. 



Iloh. ad caudices prope Amani Africce bor. — Rarius occurrit. 



30. Pleurotus longipes Boud. Bull. Soc. Myc. Fr. XXI (1905) p. 69, 284 

 tab. III, fig. 1. — Pileo excentrico v. spathulato, 1,5-2 cm. lato, 

 carnoso, glabro, centro depresso, fusco-urabrino ; stipite pleno, 

 levi, pallidiori, 3 cm. c. longo, 2-3 mm. cr., cylindraceo v. basi 

 attenuato; lamellis subdecurrentibus, albido-ochraceis, 1,3 mm. la- 

 tis; basidiis bisporis, 40-45 ;j.. (cum sterigmatibus) longis, 12-14 ;j.. 

 cr., capitulo granuloso. conoideo 18-35 ;j.. longo, ad basim 18- 



20 ;j.. cr. ; sjDoris albis, oblongis, levibus, intus granulosis, hylo 

 conspicuo, 1 1-13 * 5-6. 



Ilab. in sphagnetis pr. Chaux-des-Pres Jura GalliLC (He- 

 tier). 



31. Pleurotus pusillus Speg., An. Mus. Nac. Buenos Aires t. XIX 235 

 (1909) p. 262. — Pileis excentrice orbiculatis, unguliformibus, 2-5 

 mm. diam., tenuissimis, margine integris, primo subinvolutis serius 

 rectis, non striatis, puncto latiusculo adfixis; lamellis e centro ra- 

 diautibus confertiusculis utrinque attenuato-acutatis, acie integer- 

 rimis; basidiis clavulatis, 15^4,5, sterigmatibus s;cpius 4 brevis- 

 simis coronatis; sporis elliptico- v. subovato-.subnavicuIaribus, 4- 



5 * 2,5, eguttulatis hyalinis levibus. 



Ilah. ad terram humosam in foveis prope Jujuy Argentiuce. — 

 Species P. septico Fr. affinis sed magis carnosa et sporis con- 

 spicue minoribus distincta. 



32. Pleurotus ambiguus (Lev.) Sacc. et Trotter, Agaricus [Phuropus 286 

 ambiguus Lev. Mem. de la Soc. Linneenne [1825) pag. 6 (extr.) 



pl. Y, f. 2. - Gregarius, minimus; pileo albo, farinaceo, 4-5 mm. 

 lat., membranaceo, irregulari ; stipite excentrico, filiformi, pleao, 

 7 mm, alto, 0,5 mm. cr., albo, basi paullo incrassato; lamellis al- 

 bis, stipiti adnatis, basi rotundatis. 

 Ilah. ad ranios emortuos in Gallia. 



33. Pleurotus trutinatus iBritz.) Sacc — Syll, XI, p. 27. — Pileo 2S7 

 tcnui, ilabellato, breviter stipitato. sordide et paliidc flavo-brunneolo, 

 1,5 cm. long. et fere totidem lato, glabro; stipite 2-3 mm. loug., 



1,5 mm. cr.; lamellis ex albido flavo-brunneolis, angustis, utrinque 

 acutis, confertis; sporis oblongo-ellipsoideis, hyalinis, 6*3-4. 



Ilah. in truncis putridis in Bavaria australi. — Affinis Pleur. 

 petaloidi. 



34. Pleurotus Caltlwellii Mac Kcy, Proc and Trans. Nova Scotia 288 



