8 
elliferous branches are mostly irregularly branching, sometimes — 
quite simple and exceedingly attenuated. The leaves on them ~ 
are very closely appressed and at frequent intervals tufts of long 
radicles are produced. They usually bear numerous female buds, © 
the archegonia of which seldom develop into spore- bearing 
capsules. 1 
The other variety of branches arising from the primary stem ~ 
is coarse, stout, sub-pinnately branching with large leaves more ~ 
or lessspreading. They are not commonly produced into flagella, : 
and are densely beset with female non-radiculose buds. By rea- q 
son of the squarrose tips of the perichetial leaves, these buds are q 
quite conspicuous, resembling little burs. q 
The Manual says as to inflorescence, ‘‘ flowers moncecious 7 
“ pseudo-monoicus,” would be more correct. We find male buds 
sparingly on the stems that bear archegonial inflorescence, but the | 
antheridia in these buds I have not yet found otherwise than 
abortive. q 
The perfect male buds are developed on separate stems, 
(plants) ? are found in the axils of the leaves and as terminations 
of short lateral branches. This latter condition is only apparent, 
not real, for careful dissection shows that the stem is always — 
slightly prolonged beyond the bud, thus maintaining its lateral - 
position. Very few of these short bud-bearing branches develop q 
beyond the point where the first bud is formed, except as notemy 
above; usually several buds are produced at this place, or a 
rosette of leaves, or the branch dies. The buds contain two to * 
three oblong antheridiat/ =19" mic., with few paraphyses. q 
The capsule varies from oval to cvitidnless, erect, cernous OF 
sometimes pendent, constricted under the orifice or not, broad-— 
mouthed or with a very small orifice. Manual says “teeth 
latticed ;” this is only the case when the operculum is first lifted. 
The trabecula are seen joined, very delicately, soon, however, 
breaking apart. The leaves on the fertile stems are mostly ovate, 
narrowed into a long or short accumination ; on the flagella the 
leaves assume a more elongated outline and the point becomes 
longer. 
I have not seen the types from which the characters of 7rip- 
terocladium leucocladulum were drawn but, fide E. G. Britton, they 
