LOPHOZIA 107 
mens, affirms that these agree with his form conferta characterized 
partly by a “елита firma," instead of the “contextu laxiore" of the 
form /axa, which possibly indicates that the form with well devel- 
oped trigones should be considered typical. 
The leaves of the Mt. Shasta plant have a rather unusually 
pronounced tendency toward being complicate, but this feature is 
observable now and then in specimens from other localities. The 
form or variety inhabiting chiefly decaying logs and stumps (J. 
porphyroleuca Nees) is to be expected to occur in California, par- 
ticularly, perhaps, in the northern coast counties, 
We have observed in North American specimens of Lophozia 
ventricosa the two kinds of coloration of the capsule noted by 
Limpricht (Cohn, Krypt.-Fl. Schles. 1: 280, 281. 1877), but 
cannot determine that this character stands in any constant relation 
to other characters which have been supposed by some to distin- 
guish Jungermannia porphyroleuca from J. ventricosa. In Austin’s 
Hep. Bor.-Am. no. 36, for instance, the purplish-brown or ‘‘violet- 
red-brown” capsules occur on gametophytes which exhibit leaf- 
cells with the strongly developed trigones and roughened cuticle 
Supposedly characteristic of J. porphyroleuca. 
It is extremely doubtful if the original of Jungermannia ven- 
tricosa exists in Dickson's Herbarium in the British Museum. Two 
Scraps are, however, to be found there, under which is written, in 
pencil, in what is said to be Dickson's hand, 
“ bidta With. ed. 3 
ventricosa ”” 
But these belong to the genus Lophocolea. The leaves of these, 
With the exception of the younger, are considerably /ess deeply 
cleft than those in the figures of Micheli and Dillenius which Dick- 
Son cites, and in allusion to which he remarks: “ Folia in nostra 
profundius fissa, quam in figuris Michelii et Dillenii depinguntur.” 
А young trigonous-prismatic perianth, twice as long as broad— 
Which Dickson probably could not have described by “vagina 
‘phacroidea” —is present on one of the scraps. The reference to 
the third edition of Withering would indicate that the inscription 
under these Specimens was written at least six years after the orig- 
inal publication of Jungermannia ventricosa. 
