18 Ceplialozia. 



mosses, so tliat the latter name would not be inapt for it. My original 

 note on Proto-Cej^lialozia is as follows — " Protonema tufted, consisting 

 of suberect fastigiate subdichotomously branched eonfervoid filaments, 

 of which the oblong cells are uniseriate, or biseriate only towards the 

 base, &o." If, because some of these filaments bear male flowers at their 

 apex, it be preferred to call them branches of a true (though filiform) 

 frond, or thallus, I shall not demur, although I have been unable to 

 detect any break indicating the passage- from prothallium to thallus 

 proper. 



Eeturning once more to Eu-Cephalozia, we pass from the smaller 

 species direct to Cephaloziella, distinguished from the previous groups 

 mainly as follows — Stems slender, yet often rigid and wiry ; cortical layer 

 not different from the inner layers. Flagella none. Leaves minute, 

 rarely wider than the stem, transverse — or the lower ones snccubous — 

 carinate but not always complicate ; cells small, often minute. Under- 

 leaves present or absent in varying forms of the same species ; in only a 

 few species constant. Female flowers in only a few species invariably 

 cladogenous : in all the others terminal on branches of varying length 

 and on the main stem. The chief character, however, is derived from 

 the perianth, which, instead of being normally trigonous, as in all the 

 other subgenera of Cejsihalozia, becomes in this 4 — 5 — or*6-angled; al- 

 though, whenever the angles are reduced to 3 (as happens in nearly 

 every species, and is normal to a very few) the third angle is invariably 

 postical. The capsule is shorter than in most other Ceplialozia, and 

 usually oblongo-globose. 



It is in this subgenus alone that we encounter a solitary aberration 

 from the postical ramification normal to Cejyhalozia. In C. Turneri 

 (Hook.) some branches are postical (not flagelliform), but others are 

 decidedly lateral, and axillary to the sideleaves. This species, in fact, 

 might almost as well stand in Jungermania § Sphenolobus, near to J. 

 Helleriana Nees— to which its pectinately-leafy stems, its complicato- 

 equitant toothed leaves, and its constantly 5-angied perianth approxi- 

 mate it — as in Ceplialozia; were it not for its unmistakable affinity to 

 such true C eplialoziellm as C dentata (Eaddi), C. myrianthaLindhevg, &c. 

 [See remarks following my description of C. Turneri.] 



