24 SPHAGNUM LARIOINUM, &C. 



clavate-fusiform, attenuated at base, tlie leaves julaceously imbri- 

 cated ; pendent branches more slender, lax. Cuticular cells 

 spirally fibrillose with few pores, the transverse walls geniculate 

 downwards into the adjacent cell, usually having a pore at the apex 

 of the bend. 



Leaves of the divergent branches small below and widely cordate 

 or semicircular, becoming larger above, narrower at base, the 

 median orbiculate-ovate, squamoso-scabrous at back of the strongly 

 cucullate apex, very narrowly margined, all minutely fimbriate 

 throughout, the fibrils of the fringe formed of the commissural 

 walls of destroyed hyaline cells ; lower hyaline cells elongato- 

 rhomboidal, upper rhombic, with numerous strong papillae inter- 

 nally on the wall combined with the chlorophyll cells, all fibrillose, 

 with several large pores at the margin ; chlorophyll cells triangular 

 in section, interposed between the hyaline on the concave sur- 

 face of leaf. Fruit unknown. 



Swamps in mountain districts. 



Porto Rico. New Jersey. 

 Sphagnum macrophyllum, Bernli. (Brid. Bry. Univ. i. p. 10). 



Dioicous, pale olive green, fuscescent below, when dry glossy and 

 shining. Stems 6-10 in. high, rather rigid, very fragile, fuscous , 

 simple or dichotomous by innovation, with 2-3 layers of cortical 

 cells. Branches crowded in a spinose capitulum 3-4 in a fascicle, 

 unifonn and similar, divergent, dependent, straight, subflabellate ; 

 lax leaved, the cortical cells short, uniform, with few pores. Stem 

 leaves minute, very broad at base, ovate-oblong, obtuse, entire, the 

 liyaline cells rhomboid, without fibres, but with 1--3 central pores. 

 Branch leaves rather rigid, subdistichous, small at base of branch, 

 soon becoming elongated, narrowly lanceolate, and lanceolate-subu- 

 late, involute-concave, bordered by 1-2 rows of extremely narrow 

 cells, apex somewhat truncate, with 7-8 teeth. Hyaline cells 

 elongate, flexuose-fusiform, with 6-10 p res in a longitudinal 

 median line ; free from fibres. Chlorophyll cells cu'cular in 

 section, separating the hyaline both in front and back. 



Fruit in the upper fascicles or in the coma, divergent ; perichaj- 

 tial bracts 6-9 lax, oblong-ovate, uppermost convolute, truncate, 

 and toothed at apex, the areolation resembling that of the branch 

 leaves. Capsule small on a shortish slender peduncle ; spores 

 sulphur coloured. Male ]3lant and prothallium unknown. 



North America (near Philadelphia, in Louisiana, Alabama, 

 Mississippi, New Jersey). Braithwaite, in Monthly 31icro. Journ., 

 Avg., 1875. 



Mycographia. — An announcement is made on the cover of this 

 Journal of the speedy issue of the first part of a new work con- 

 taining coloured figures of Fungi, to be continued at intervals of 

 about six months. 



