5 



nostomous form which bears his name but once; but has frequently 

 sent specimens from the same spot collected since, which are almost 

 identical with Mr. James' specimens — monoecious inflorescence and 

 all.^ But I find no male plants in specimens sent by Mr. Wolf, 

 which are nearly identical with No. 68 of Muse. Appalach. The 

 forms of this species are all transient, as any one must know who 

 has watched it grow. I have found its widest possible extremes 

 growmg from the same patch during but two successive years. 



The inflorescense in this species, usually autoicous, is often obscure. 

 I have often examined specimens in which I could find no male 

 flowers, but have no recollection of ever seeing a specimen that 

 contained no female flowers. (No. 69 of Muso. Appalach, forms no 

 exception to this rule, for it plainly belongs to some other species. It 

 appears to bea Gymnostomum.) 



Weisia yiridula, Brid., not only includes both the foregoing 



W. 



AusT., but several other about equally well characterized forms, 

 which I am not aware have yet been described as new ; and the 

 characters in which W, mticronata^ Bruch, coincides with one or 

 another of the forms of W, viridtilay are too striking for me to accept 

 it as a distinct species ; although it is so regarded, I believe, by all 

 the eminent authorities of Europe. In matters of this kind I have 

 invariably found Nature to be the best authority. 



(8.) Ptychomitrium iNotarisid) pygmaeum^ L. & J. Hab. Near 



the Neosho River, Kansas, and 



ffalL—^ot 



J 



to study carefully the description ; and soon, became so strongly im- 

 pressed with the idea that it was at most only a form of Ft. incur- 

 vum, ScHWGR.,that I wrote to Mr. Hall for samples of the original 



specimens. 



West 



Mo. One from Vernon Co., which proved to be true Fi. inctirvum, 

 and the other from Bolivar, one of the localities given for the new 

 moss. This is not smaller than the true 7^/. inctirviim^ as it occurs in 

 this region (Closter, N. J.), 7ior are the leaves different in a single, 

 most minute particular ; but the pedicels are a little shorter and the 

 capsules darker and more solid, narrower, and usually more acute at 

 the base. All the capsules are immature and shrivelled, and have a 

 more or less diseased appearance. Even after long soaking I found 

 it impossible to swell them out; or to remove an operculum without 

 injuring the peristome, which, so far as I could see, is not different 

 from the imperfectly developed peristome of the typical plant. The 

 same is true of the annulus. As for the ''marked neck of the cap- 

 sule extending one-third its length f I find it to be but a trifle more 

 marked than I have usually seen it in immature capsules of typical 

 Ft incurvum j -in fact, upon long soaking and under slight pressure, 

 it is, in the best developed capsules, not more marked than it is shown 

 to be in Fig. 2 of Sullivant'slcones, T. 39. The Neosho River spec- 

 imens, received since the above was written, differ from the last only 

 in having all the capsules very old, and th^ calyptras all very young, 

 (9.) Fissidens Garberi, L. & J. Hab, on the bark_ of trees, 

 Florida. Garber, — I have not been able to secure a specimen from 



