^Meddel. af Societas pio Fauna et Flora iennica, 14: 1887.) 



Symbolae ad Mycologiam Fennicam. 



P a r s XIX. 



Auctore 

 P. A. Karsten. 



(Sodetati exhibitnm die 5 Fehruaril 1887.J 



I. Basidiomycetes. 



Pleurotus semiinfundibuliformis Karst. n. sp. 



Erectus, simplex. Pileus carnosulus, semi-infundibuli- 

 formis, laevis, alutaceo-ferrugineus, glaber, margine undu- 

 lato. reflexo, circiter 3 cm. latus, Stipes exacte lateralis, com- 

 pressus, aeqvalis, basi leviter incrassatus, sat tennis, to- 

 mento tenui obductus, albido-pallens, 0,5— o cm. altus, 

 3—5 mm. crassus. Lamellae longe decurrentes, admodum 

 confertae, lineares, angustae, albidae, tandem (praecipue 

 siccitate) flavesceutes. Sporae ellipsoideo-sphaeroideae vei 

 subsphaeroideae, longit. 6 mmm., crassit. 4 mmm. vei diani. 

 4 — 5 mmm. Basidia cylindraceo-clavata, longit, circiter 30 

 mmm. Cystidia sparsa, e basi obliqva tenuata fiisoidea, lon- 

 git. 57 — 78 mmm., crassit. 10 — 20 mmm. 



In collibns graminosis ad terram et carbones prope 

 Mustiala, m. Aug. — Oct. 



A Pleuroto imtaloide var. spatlmlato, ciim qvo olini 

 conjunximus, tenuitate omnium partium, pileo latiore gla- 

 bro, stipite longiore nec non partibus internis diversus. 



Pleurotus petaloides (Bull.) Fr. var. glabratus Karst. 



