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310 ON THE GEEMINATING SPORIDIA OF YALSA CEIPHEMIA. 



rarely in. long, cut away for the lower third of the posterior 

 border, the inner upper corner touching the racliis or wrapping 

 over it. Veins fine, close, free, flabellate. 8ori placed all round 

 the edge of the segments, except the inner and base of the lower 

 margin, broken up into numerous close oblong patches, with a 

 very narrow glabrous involucre, Glaziou 13346 ! — Habit of 

 obtimim, but the segments in shape and arrangement of sori like 

 intennedium. 



22"*' Adiantum Diogoanum, Glaziou in herb. — Stipe about a foot 

 long, square, more or less furfuraceous. Lamina copiously bi- 

 pinnate, a foot long, dark green, glabrous, moderately firm in 

 texture ; rachis furfuraceous. Pinnae about 10, lanceolate, 6-9 in. 

 long, 1-li in. broad. Segments contiguous, sessile, dimidiate, 

 subquadrate, |-f in. long, ^ in. broad, entire on the inner and 

 lower border, not lobed, but sharply serrated when barren on the 

 upper and outer edges ; anterior corner touching the rachis, or a 

 little imbricated over it. Sori extending all round the upper and 

 outer borders, continuous, but broken into numerous slightly 

 curved portions ; involucre narrow, glabrous. — Terra da Babylonia, 

 gathered by Madame Amelie Diogo Velho, Br. Glaziou. Inter- 

 mediate between villosum and cristatwn. 



Ill" AcRosTicHUM GiLLiANUM ( Glaziou in herb.). — Sterile fronds 

 6-10 sessile in a rosette, oblanceolate, obtuse, entire, 2-3 in. long, 

 ^-f in. broad, narrowed from above the middle gradually to the 

 base, rather thick in texture, green and slightly scaly on the 

 upper surface, densely clothed with persistent brown minute 

 lanceolate ciliated pale« beneath. Fertile frond with a slightly 

 scaly fragile castaneous stripe 6-8 in. long, and three palmately 

 arranged shortly petioled entire linear segments 2-3 in. long, 

 green and nearly glabrous above, densely scaly on the soriferous 

 lower surface. — Woods at Arasenah}^ Minas Geraes, gathered by 

 M. Gille, Glaziou 13341 ! A very interesting novelty, closely 

 allied only to Acrostichum aureo-nitensy an endemic species of the 

 Galapagos Islands, figured in Hooker's ' Icones,' tab. 933. 



NOTE ON THE GERMINATING SPORIDIA OF 

 VALSA CEIPHEMIA, Fr. 



By George Massee. 



Respecting the germination and development of the group 

 of fungi called Pyrenonif/cHes but little is known. The followmg 

 observations, although falling short of a complete account of the 

 cycle of changes, carry us one step further towards the elucidation 

 of the functions and relative value of the numerous bodies which 

 are, in some way or other, connected with reproduction. Sections 

 of the above-named plant were placed in gelatine, previous to being 

 mounted as microscopic objects. At the end of three days it was 



