﻿224 Grout : A Revision of the 



Our American specimens are less robust and shorter stemmed 

 than most of the European material at hand and the stems are not 

 stoloniferous or the branches flagelliform as is 'usually the case 

 with European specimens, yet some European plants agree almost 

 exactly with the American plant and the two are almost certainly 

 the same species. C. cirrosutn is a very variable and poorly 

 understood plant even in Europe. 



I a. ClRRIPHYLLUM CIRROSUM COLORADENSE (Aust.). 



Hypnum Coloradense Aust. Bot. Gaz. 2: in. 1877. 



Gamctopliyte robust ; stems 3-5 cm. long, erect or at length 

 prostrate, sparingly branched ; leaves loosely imbricate, oblong- 

 ovate, 2-2.2 x 0.9 mm. without the acumination, which is 0.5-0.8 



mm 



at all cucullate, much less concave than in the typical form, some- 

 what plicate. 



Type locality, Alma, Park Co., Colorado, Miss H. J. Biddle- 

 come. Type in the herbarium of Columbia University. 



Distinguished by the stout, sparingly branched stems and 

 loosely imbricate leaves which are not cucullate at apex. It does 

 not correspond with any of the European varieties mentioned by 

 Limpricht so far as can be determined from the material at hand. 

 It is clear that Austin did not know the true cirrosutn for there is 

 a specimen of it from Colorado labelled in Austin's handwriting,- 

 " Hypnum Coloradense var. dimidio minus , sericco-aureo viridt\ 

 caulc subjidacco tereti" 



2. ClRRIPHYLLUM BRANDEGEI (Aust.). 



Hypnum Brandegei Aust Bot. Gaz. 3: 31. 1878. 



Gamctopliyte densely caespitose, yellow-green ; stems erect, 

 3-4 cm. high, nearly simple, terete -foliate, obtuse ; leaves loosely 

 appressed-imbricate, not decurrent, ovate, abruptly subulate-acu- 

 minate to filiform -acuminate, 2 x 0.9 mm., acumination 0.3-0.4 

 mm. long, entire, concave, plicate ; margins plane ; costa reaching 

 the middle of leaf, sometimes forking ; median cells oblong-linear, 

 25-30 x gft; basal cells shorter and broader, alar enlarged-quad- 

 rate. SporopJiyte unknown. 



Type locality, Colorado, Brandegee. Type in the Columbia 

 University Herbarium. 



Easily distinguished from C. cirrosutn by its caespitose habit, 

 short entire acumen and much looser areolation. 



