162 BOTANICAL GAZETTE. 



margin often broadly inliexed, longer costa with the divisions more 

 divergent above and less united at the base, and by the pendulous 

 capsule. (Capsules too old; operculum, etc., not seen.) 



H. dcplauatum has minute ovate serrate either paraphyllia or para- 

 phyllia like bracts on the stem, above the bases of the leaves. They 

 are arranged in a bud-like ring, and are ]iossibly bracts belonging to 

 incipient branches. 



Hypnum (Brachythecium) DoNXELLii,n.sp. — Antoicum, amcene laste 

 vel subaureo-viride, nitens ; caule brevi depresso-caespitoso vel arete 

 repente ilexuoso subsimplici ; foliis caulinis ovato-lanceolatis tenui 

 acuminatis integerrimis (vel raro apice remote serrulatis) lenissime 

 falcatis erectiusculis laxe imbricatis convexiusculis laevibus semicosta- 

 tis, costa a lata basi tenui, cellulis pro genere permagnis superioribus 

 lineari fusiforuiibus rectis acutissimis, basilaribus permultis latiori- 

 bus quadratis; capsula in pedicello h^vi semiunciali tenuissimo min- 

 ima ovali subhorizontali, operculodepresso-conico, peristomio interno 

 breviusculo processibus subintegris ciliolis imperfeetis, annulo — ? 

 calyptra nnda: foliis i)ericluFtia]ibus minoribus subconformibus ecos- 

 tatis hand piliferis; organis genitalium brevissimis paraphysibus 

 nullis. 



On rotten wood, roots of trees and shells, on the shell mounds of 

 Charlotte Harbor (Pine Island), Florida, March, 187S. /. D. S. and 

 C.F.A. 



This fine species is readily distinguished by its estriate entire 

 leaves, short smooth pedicel, minute subhorizontal capsule, imperfect 

 inner peristome, etc. Costa of leaf broad at the base, gradually be- 

 coming obsolete about midway to the apex. The fusiform cells of 

 the upper part of the leaf pass abruptly into the numerous quadrate 

 ones of the base; the dividing line between them passing very obli- 

 quely upward from the costa to the margin of the leaf, — more so than 

 in the IT. acuminatuhu less so than in //. suhcapillaUun. Closely re- 

 lated to II. acuminatum, Beauv.; but that is larger, with leaves bisul- 

 cate at the base, serrulate, the quadrate basal cells smaller and not 

 passing so far up the margin, pedicel longer and stouter, capsule 

 larger, erect, etc. 



Brachythecum birentrosum., C. M. (B. spJendeus, Aust.) was found in 

 great abundance on CA^^ress stumps, limestone rocks, etc., in the Gulf 

 Hummock, near Rosedale; the fruit (in March) was too old. Fine 

 specimens of this species were confounded with Hypnum acuminatum, 

 var, rupincola in Sulliv. and Lesqx. Exsic. Ed. 2, n. 492, It is rather 



