ÖFVERSIGT AF K. VETENSK.-AKAD. FÖRHANDLINGAR 1900, N:0 2. 313 



Hal), ad terram locis muscosis in nemoribus prope Rio 

 Grande i^/i 1896 (P. Dusen n:o 78). 



Ohs. Species haec parum a Ph. ombrophila Fr. var. brunnea 

 diversa. Spors amygdaliformes vel obverse piriformes, luteset 

 9 — 11 X 5 — 7 jtt; basidia clavata, 30 x 8 — 10 /.i. 



10. Pholiota marginata Batsch fig. 207. 



Hah. ad truncos putrides, Isla Desolacion, Puerto Angosto 

 12/4 1896 (P. DusÉN n:o 182). 



Ohs. Sporae lutese, subamygdaliformes, 8 — 9 X 4^/2 — 6 a] 

 basidia clavata, 20 — 25 X 6 — 8 ^i, cystidia ampulliformia, cla- 

 vato-subcylindracea vel fusoideo-ventricosa, 50 — 65 x 14 — 16 i-i. 

 Plioliota marginata, Ph. mustelina et Ph. unicolor vix in vivo 

 distinguendae et raeo sensu tantum formae unius speciei. In 

 forma, quam pro Ph. unicolore habeo, cystidia saepe apice capi- 

 tata sunt, sed adsunt quoque cystidia fusoidea et clavato-sub- 

 cylindracea. 



11. Naiicoria semiorhicularis BuLL. tab. 422. deformatio 

 lamellis venosis {=■ Ptychella ochracea BouD. Bull. Soc. Bot. de 

 France, juiU. 1879, Tome XXVI, pl. III, f. 1 ?). 



Hah. in humo, Rio Grande ^o/i 1896 (P. Dusen n:o 92). 



Ohs. Specimina observata lamellis gaudent deformatis, reni- 

 formibus, ramosis vel poroso-anastomosantibus, uti in Cantiia- 

 rellis, hinc inde fertilibus. Deformatio a mycelio Hypomycetis 

 sp. producta, cujus status conidicus, sub forma Sepedonii,. 

 jam partialiter raanifestus conidiis globosis, aculeatis, 8 — 10 f.i 

 diam. 



12. Naucoria umhrina Bres. n. sp. 



Pileo carnosulo, e convexo expanso, subumbonato, sericeo, 

 avellaneo-fusco, centro obscuriori, 2^/2 — 3V2 cm. lato; lamellis 

 confertis, postice rotundato-adnexis, e pallido-avellaneis ferru- 

 gineo-fuscis; stipite subaequali, e farcto cavo, fibrilloso, luteo- 

 fusco, apice albido, 3 — 4 cm. longo, 3 — 5 mm. crasso; carne 

 pallida, subconcolori; sporis subellipticis, luteolis, 7 — 8 X 4 — 4^/2 

 fx; basidiis clavatis, 30 — 35 x 6 — 8 /.t; cystidiis cuspidatis, laevi- 

 bus, basi ventricosis, 50 — 65 x 10 jU. 

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