IIYTIIOMYCETES. 



[ 407 ] 



IIYPNOIDE/E. 



those will bo found uuder the Families, also 



I'Alt.VSITIC EUKGI. 



Fig-. 347. 



Fig. 348. 



Clonostachys Araucaria. 

 Fig. 347. Magn. 200 diams. 

 Fig. 348. A fertile branch. Magn. 400 diams. 



Fig. 349. 



Fig. 350. 



Ceratocladium microspermum. 

 Fig. 349. Magnified 200 diams. 

 Fig. 350. Spores, magnified 400 diamfi. 



Synopsis of the Families. 



IsARiACEi. Eeceptacle clavately branched, 

 or assuming Ilyiuenomycetous forms, com- 

 posed of filaments closely attached in their 

 ■whole length; spores simple, attached to 

 simple pedicels arismg in all parts (fig. 349). 



Stilbacei. Receptacle wart-like or 

 clavate above, stalked below, composed of 



filaments closely packed, coherent, termi- 

 nating singly in free subgelatiuous spores. 



Dkmai'iei. IMyceliuni filamentous, spores 

 compound or simple, arising from the apices 

 of erect, solid, corticate, subopac^ue fila- 

 ments (fig. 346). 



MucKDiNEs. Mycelium filamentous, 

 spores solitary, oi- crowded on articulatod 

 or branched tubidar and pellucid filaments 

 (figs. 344, 345), soon separating and min- 

 gling with the mycelium, or adherent in 

 chained rows. 



Sepedoniei. Mycelium filamentous, 

 spores usually found heaped together resting 

 on the mycelium, and apparently springing 

 out of it directly. The spores are the 

 principal element in this Order, which ap- 

 proaches Coniomycetes. 



IIYP'NEA, Lamouroux. — A genus of 

 Rhodymeniacefe (Florideous Algje), the 

 only British species of which, H. jnir^mras- 

 cens, is a common purplish pink feathered or 

 shrubby sea-weed, the lobes being cylindi-i- 

 cal, filiform, and cartilaginous, growing from 

 2" to 6" in height, with the filaments about 

 1'" in diam. On stones, rocks &c. between 

 tide-marks. The fructification consists of 

 coccidia, tubercles immersed in the ramuli, 

 each containing a mass of small spores ; and 

 tetrasporcs, immersed in the lesser branches, 

 of separate plants. 



BiBL. Harvey, Mar. Alg. 130, pi. 16 D; 

 Fhyc. Brit. pi. 116 ; Enq. Bot. pi. 1243. 



HYPNOl'DE^.— a' family of Pleuro- 

 carpous Mosses of large extent. Leaves 

 with the cells prosenchymatoiis, dense or 

 lax, smooth or papillose. Alar cells at the 

 bases of the leaves diverse : 1 , square, flatfish 

 or ventricosely impressed, pellucid or yel- 

 lowish, or fuscescent; 2, few, vesicular, 

 placed at the very base, of a delicate j^ellow 

 or hyaline ; 3, obsolete, scarcely any, placed 

 at the very base, fugacious, hyaline, vesi- 

 cular ; 4, many, square, in papillose leaves, 

 but mostly not very conspicuous. Leaves 

 0-5-nerved. Nerves binate, diverse : 1, 

 divergent from the base, distinct, very cal- 

 lous at the back of the leaf and prominent 

 in the form of a spine fiom the dorsal sur- 

 face ; 2, flattened down, scarcely caUously 

 prominent ; 3, in leaves where the alar cells 

 are vesicuhform, the nerves obsolete, indi- 

 cated by a pair of very short striae, mostly 

 inconspicuous. 



British Genera. 



a. Internal peristome tvithout interjwsed cilia. 



Necket-a, Calyptra dimidiate. Peristome 



