CEPHALOZIELLA. 1 8 1 



2. Portion of fertile plant x 64 (Cornwall, Curnow). 3. Portion 

 of branch, postical view x 31 (ditto). 4-8. Leaves x 85 (ditto). 

 9. Leaf x 85 (Westmorland, P. Dreesen). 10. Ditto x 85 

 (Scotland, Drummond), 11-14. Leaves x 64 (Crich, Wilson). 

 15. Upper leaf x 64 (Cornwall, Curnow). 16. Portion of leaf 

 X 290 (ditto). 17, 18. Stipules x 64 (ditto). 19. Sub- 

 bracteole x 85 (Scotland, Drummond). 20, 21. Bracts x 85 

 (Crich, Wilson). 22. Bracteole x 85 (Cornwall, Curnow). 23. 

 Perigonial bract x 64 (ditto). 24. Antheridium x 64 (ditto). 



16. Cephalozia aeraria, Fearson. 



Cephalozia m'aria, Pears., Spruce, On Ceph. (1882). 



Dioicous, cladocarpous, densely depressed csespitose, eflagelli- 

 ferous, minute, tawny or pale brown colour. Stems flexuose, 

 extremely fine, rootlets closely intertwined, moderately strong, 

 sparingly branched, branches subhyaline, foliose; cells of the 

 stem 8 in diameter, cortical ones 10-15, slightly larger than the 

 inner. Leaves dissitous-squarrose, almost patent, minute, sub- 

 cuneate, obscurely carinate, deeply (to fths) bilobed, subentire, 

 sinus acute or obtuse, segments ovate or lanceolate, at the base 

 2-4 cells broad, sub-acuminate, apical cell single, conical (twice as 

 long as broad), very often incurved, apiculate; cells minute, 

 oblong, pellucid, distinctly guttulate, walls at the angles thickened, 

 epidermis rough. Stipules variable, lower ones often minute or 

 obsolete, upper ones about half the length of the leaves, lanceolate, 

 sometimes connate to the nearest leaf, forming a three-lobed one, 

 the largest rarely bilobed and scarcely smaller than the leaves. 

 Fertile branches very short ; bracts 3 pairs, nearly twice as long 

 as the leaves, in sterile flowers free, a little more than to the 

 middle bilobed, lobes ovate, acuminate. Further organs not yet 

 known. 



Dimensions. — Stems \ inch long, '05 mm. in diameter, with 

 leaves -25 mm. wide; leaves '125 mm. x '075 mm., segments -06 

 mm., -15 mm. X -1 mm., seg. "1 mm., 175 mm. x -1 mm., seg. 



