1900. No. 9. FUNGI (MICROMYCETES) COLLECT. IN ARCT. NORTH AMERICA. II 
Discomycetes. 
Naevia fuscella (Karsten) Lisp. Syn.: Phacidium fuscellum 
Karst. (85, pag. 160). Sacc. VIII, pag. 720. Trochila fuscella Karst. 
(7I, pag. 248). 
Ascis 80—100 u X 12—16 u; sporidiis 16—20 u X 6—8 u, utrinque 
rotundatis. By examination of the rich material of this species at the 
museum in Copenhagen I have found, that in regard to colour, consistens 
and relation to its host it agrees much more with the genus Naevia 
Fries (Sticteae) than with Phacidium Fries (Phacidiaceae). It is formerly 
noticed on Carex atrata, hyperborea, leporina, scirpoidea, stans and 
vulgaris. 
On Carex aquatilis var. stans. 1/s 1904. 
Area: Finl., N. (Dovre), Su. (Jemtland, Rostrup (83)), Fær., Isl., Gr. 
Naevia ignobilis (Karsten) REHM. (96, pag. 142). Syn.: Phacidium 
ign. Karst. (85, pag. 160). Sacc. VIII, pag. 720. Trochila ign. Karst. 
(71, pag. 248). 
Ascis 52—60 u X 12—14 u; sporidiis 12—13 u X 3 u. 
On Carex aquatilis var. stans. 3/5 04. 
Area: Finl., N. (Fløjfjeld, Rostrup (86) etc.), Su. (Snjärrack and 
Pollaure, ScHRoET. 81), Isl., Gr., Els. besides Helv. 
Naevia pusilla (Lıs.) Rens. (96, pag. 143). Syn.: Stictis pusilla 
Lisert, Mollisia perpusilla Cooxe, Trochila pusilla Spec. & Roum, Mollisia 
aberrans REHM, Stictis Niesstu Roum, Trochila juncicola RosTruP. Sacc. 
VIII, pag. 662 & VIII, pag. 732. Icon: REHM (96, pag. 118). 
Ascomatibus sparsis, primitus immersis, clausis sphaeroideis, initio 
epidermide tectis, dein erumpentibus ore circulari sescernentibus, disco 
pallido fulvo-flavo, 1/; mm. diam, concavo, margine pallidiore. Ascis 
8 sporis, clavatis, sursum rotundatis, sessilibus, 40—52 u X 8,7—10 u. 
Jod +. Paraphysibus apice clavatis usque 5 uw incrassatis, pallide flavis, 
ascos paulo superantibus. Sporidiis distichis, clavulatis, undique obtuse 
rotundatis, continuis, hyalinis 8—11 u X 3—4 u, biguttulatis. 
The description of Trochila juncicola by the late Mr. Rostrup (86, 
pag. 231) is very insufficient. I have examined numerous specimens, 
deposited here in the museum determined by him, they all agree with the 
description of Naevia pusilla by REHM (96, pag. 143) and with the speci- 
mens, determined by REHM and issued by Jaap (Jaap: Fungi selecti 
