REVUE BRYOLOGIQUE 75 



tersuclmngen liber die Vermehrung der Laubmoose durcli 

 Brutorgane und Stccklinge, p. 175 et scq.). 



Lewes/ 28^^^ Nov. 1900. 



Explanation of the plate, —a, entire plant, nat size, b, b, leaves X CO. 

 c, basal areolation of a baf X 138. d, areolation in the middle X 13S. 

 e areolation of the upper part X 138. f, transverse section of a leaf in 

 the middle X 270. g, transverse section of the stem X 270. h, part of 

 a rhizoid X 138. ' ^ 



Isotachis Stephanii sp, nov. (Plate IV) 



by E. S. Sauion. 



Robusta, dense caespitosa, flaccida, sordide badia ; caule 

 usque ad 8 cent, longo lloxuoso supra in ramulos subju- 

 laceos partito interdum simplici inferno sordide badio apice 

 laele badio, foliis distichis dense imbricatis flaecidis tenuibus 

 erectis vel ereclo-patentibus ainplexicau]il)us subcomplicatis 

 late oblongis 3-3.5 mm. longis 2.5-3 mm. latis basi ven- 

 tricosis marginc intcgro vel obtuse dentate ad 1/7 bifidis 

 sinu infra plus minus anguslato segmculis late Iriangulari- 

 bus plerumque minute apiculalis cellulis superioribus firmis' 

 quadratis ct breviter rectangulis 30-50 t^ longis 12-20 fz latis 

 parielibus phis minus incrassalis trigonis nidlis, C(dhilis 

 inieriovibus elongalo-rocfangnlis, amphigaslriis foliis paulo^ 

 mim)ribus 2.5-3 mm. longis 2 mm. latis parum conoavis 



caetoris conformibus. 

 Reliqua ignola. 



/. fjvandi Carr. et Pears, affmis, sed habiUi robusliore, 

 foliis et amphigaslriis majoribus minus profunde bifidis 

 distincta, 



Ilab. Growing in Avatcr in large round tuRs, on the top 

 of a hill at Orepuki, Foyeaux Strait ; on tlie summit of 

 Mount Tliompson, one of the spurs of Mount Anglem, 

 Stewart Island, New^ Zealand (Robert Brow^n, in UlL^ 

 Jan. 1901). 



The hepatic above described was sent to me by AP Robert 

 Rrow^n, of New Zealand. The specimens sent, alllioiigh 

 sterile, clearly belonged to Isolachis, a genus which as 

 Gotlsche has'^renuirked (see Carrington and Pearson, in 

 Proc. Linn. Soc. N. S. Wales, sec. ser., II, p. 10^2 (1888) 

 « is readily recognised by its evenly arranged leaves and 

 stipules, which hist so nearly resemble the loaves in size 

 and form tliat the foliagemight almost be called trifarious. » 

 Not bein^ able to idenlily the jdant with any species of 

 ffiofrfrhh m the Kew Krn-barium, I sent a specirnon to Ilerr 

 Stephaui, who kindly informed me that it was a new spe- 

 cies. I am indebted to Ilerr Slephani for the following. 



