I Kl :>II -\VATKK A 1.'. I! OF T1IK U X IT F. I> STATUS. 1 \ 



In rupihus irn.ratis inter musois minutis. Mount Tuhawus (vulyo Mount Marcy), 1 alt. 

 6000 feet. 



Forming a blackish, widely expanded, t.im.-ntose turfy covering to rocks; filament with scat- 

 ti red liranclics ; branches innM . fd-u elongate and clavatu ; cells uniscriatc, about 



equal, or shorter than long, sometimes subglobotte, often subquadrate ; in advanced age often 

 strongly compressed and transvi-r-i-ly ol.l.mjr from mutual procure, yellowish, or sometimes, 

 when ymiiiL'. greenish ; tin- apical cells coalc.-ccnt into nu irregularly cylindrical mass; hete- 

 r< .cysts wauting ; sheaths yellowish-brown ; at m.iuirity more or less subopaque, and distinctly 

 lauic'llate; in ynitli tnuro r less transparent, and sometimes colorless. 



x. Near tin- top of Mount Tahawus, in the Adirondack Mountains, 

 tin re is, at an altitude of about live thousand feet, a strep slope of bnro rock, 

 the bed of an old landslide, over portions of which water is continually drip- 

 ping. In such places the plant under consideration flourishes, forming with 

 some \ery minute mosses a hlacki-h, turfy coating to the rock of many feet, 

 or e\en yards, in extent. The specimens agree well with the descriptions of the 

 Kuropeaii plant, which also grows at about the same altitude as the American. 

 They ha\e. ho\ve\er, one peculiarity not noted in description of the European 

 form, namely, that oftentimes the sheath of a branch widens out until it is actually 

 much larger than the main lilament. Tin; color of the cells in the European form 

 .id to he a-rn^inous ; but I conceive this depends somewhat upon the age of 

 the specimens and is scarcely of primary value. The only other difference worth 

 noticini,' is that my measurements exceed somewhat those given of the European 

 plant. I do not think, however, there is any good ground for separating the forms 

 as distinct spec . 



The finding of an Alpine plant growing on a mountain half way across the world 

 from its first discovered home, at practically the same altitude, is a matter worth 

 noting as a fact in Botanical Geography. 



8. neglectuM, WOOD. 



S. immTus; trichomatibus subsolitariis, lonpis usque ad lincas qnatuor, cylindricis, ramosMs- 

 simis; ramulis singulis; cytioplasmatc interdum erngineo, plerumque aureo-brunm-n; cellulis 

 nntseriatis rarissime bmeriatis, sabglobosis, interdum scjunctis sed plerumque arete connectis 

 et monilifonnibus, mode conflucntibns, baud distinctc pachydermaticia ; ccllnlis trrmiimlibus 

 elongato-cylindricis, Rcpc nonnihil oscilatorinm modo srticulatis; cellulis interstitialibus nulli.- ; 

 taginis interdum brunncis, plerumque coloris czpertibns. 



Diam. Trichom. cum vag. t } B " .0017" ; sine vag. T ,' ff ir" -001". 



Syn. S. negleciu*, WOOD, Prodromus, Proc. Amer. Philos. Soc., 1869, p. 133. 



llab. In stagnis, New Jersey. 



S. immersed, subsolitary. attaining a length of 4 lines, cylindrical, very much branched ; branches 

 single ; cytioplasm Kruginons, mostly yellowish-brown ; cells uniseriate, very rarely biscriatc, 

 subglobose, sometimes separate but more frequently closely united and moniliform ; terminal 

 cell an elongated cylinder, often articulate somewhat like an oscillatoria ; interstitial cells 

 wanting ; sheaths transparent, sometimes brown, mostly colorless. 



1 " Tahawvs," cloud splitter. The Indian names of the American mountains ought to be retained, 

 in s|>ite of the fact that some vulgar land surveyor haa defiled the Adirondacka with the names of 

 politicians, through whose influence he hoped for patronage. 



