154 NEW OR CRITICAL FUNGI* 



processes ; base aud main branches rusty-brown, becoming ochra- 

 ceous upwards, pruinose with the elliptical, colourless spores, 

 which measure 5-6 x 3-5-4 /x. Fragrant. 



On rotten wood. Rock garden, Kew Gardens, Oct. 1895. 



Forming dense tufts 5-6 in. across. A very distinct species, 

 characterised by the rusty colour, and fragrant, spicy smell, which 

 resembles that of Lentinus cochleatns. 



MoUisia chionea Mass. & Crossl. (PI. 357, figs. 21-24). Gre- 

 garious or crowded, sessile, but attached by a somewhat narrowed 

 base ; thin and fragile, snow-white, almost translucent when moist, 

 becoming dead-white when dry ; subglobose and closed when young, 

 gradually becoming plane, and finally slightly convex ; margin 

 minutely fimbriate externally, very delicately pruinose, about 1 mm. 

 across ; cortex composed of hexagonal cells which are slightly 

 elongated in the direction from base to margin, 20-25 x 10-12 fi, 

 running out into crowded, parallel hyphae of diiferent lengths to 

 form the irregularly fimbriate margin ; asci cylindric-clavate, apex 

 narrowed, base ruther stout, 40-45 x 5-6 fi, 8-spored ; spores 

 irregularly 2-seriate, hyaline, continuous, smooth, narrowly cylin- 

 dric-oblong, ends obtuse, straight or very slightly curved, 6-8 x 

 1-5-2 /x ; paraphyses cylindrical, about 2 /a thick, scarce. 



On dead or dying stems of Carex pendula. Elland, West Yorks. 

 Comm. C. Ciossland. Coll. W. Needhavi. Oct. 1894. 



Bearing some superficial resemblance to Helutium eburnewn, 

 which sometimes occurs on the same host, but distinguished by its 

 larger size, absence of stem, much larger cortical cells, and some- 

 what larger spores. Substance soft and watery when growing. 



Descbiption of Figures on Plate 357. — Fig. 1. Clypeum peUatiim, gron-p 

 of plants on portion of a leaf ; nat. size. 2. Single plant of same ; x 7. 

 3. Paraphyses and ascus, with spores of same; 400. 4. Dasyscypha trahi- 

 nelloidea, paraphyses and ascus with spores ; x 400. 5. Scleroderris virescens, 

 paraphysis and ascus with spores ; x 400. 6. Fseudopeziza Ellisii, plants on 

 culm of Festuca tenella ; nat. size. 7. Paraphysis with ascus and spores of 

 same ; x 400. 8. Spragueola amcricana, plant ; nat. size. 10. Hypocrella 

 ochracea, plants on portion of a leaf; nat size. 11. Section through a fungus 

 of same; x 10. 12. Ascus containing spores of same ; the spores have become 

 broken up into their component cells ; x 400. 13. Portion of a spore intact, 

 also isolated cells of same; x 400. 14. Sterigmatocystis vitellina, two 'plants; 

 nat. size. 15. Section of fertile head of same ; x 350. 16. Portion of head 

 showing origin of spores; x 600. 17. Polyijorus dtjuinutiis, plants; nat. size. 

 18. Plant of same ; x 10. 19. Geoglossum lignicolurn, plants ; nat. size. 

 20. Spore of same ; x 400. 21. MoUisia chionea Mass. & Crossl., plants on 

 portion of culm of Carex pendula ; nat. size. 22. Same, slightly magnified. 

 23. Sections of same in various stages of development. 24. Spores of same 

 X400. 



