150 



165. P. færoénsis sp. nov. (Plate IV.) 



Dioicous. In dense, green, ol'ten more or less pnrplish, rarely 

 quite purpie to black-purple, faintly shining lufts or expanded 

 patches. Stem erect or decumbent, 1 — 10 centim. long and, inclusive 

 of leaves, ab. 1 mm. broad, slightly radiculose below, simple or with 

 few brancbes, tbin (0,33 mm.), but firm, witb broad (0,065 mm.) 

 central strand, uniformly leaved or tlie lower leaves destroyed ex- 

 cept tbe firm nerve. Leaves erecto-patent, below tbe male inflor. 

 imbricate, ovate, roundisb-obtuse, entire or obsoletely denticulate 

 above, not decurrent, very concave, margins plane; nerve strong, 

 very prominent on back and longly decurrent, purplisb, vanishing 

 just below apex, transversal section with 4 indicating cells (»Denter«), 

 a small conducting group (»Begleiter«) and a tbick posterior band 

 of sterei'ds; cells rbombic or rhombo-hexagonal, walls incrassate, 

 about tbe nervepoint more irregularly rectangular and broadly 

 rbombic, at base rectangular; base purplc or orange, consisling of 

 laxer and tbinner, rectangular and quadratic cells. Male inflor. 

 gemmiform, terminal, finally lateral, bracts sbort and relalively 

 broad, tbe broad part yellowisb, consisting of thinwalled, rectangular 

 cells, nerve distinct above, vanishing below, antheridia 2 — 3 together 

 in the axis of bracts, mixed with somewhat longer paraphyses. 

 Female plant unknown. 



A curious species, somewhat resembling Brijiim alpimiin in habit, 

 but the leaves roundish-obluse as in Bnjiiin Maratii. At flrst I 

 named it Brijiim færocnse, but my friend, Dr. J. Hagen, the emi- 

 nent Norwegian bryologist, called my attention to the male inflor., 

 which is as in Pohlia, where the antheridia are placed binary in 

 the axis of bracts. 



Specimens gathered by R. have been met with in the collections. 

 Tb. Jensen has labelled them >>Brijnm caIo])hijUiim<i and yBrijnm 

 Marativ/ or new«. 



Fær., not rare. On stones and rocks in running water, below 100 ni. 

 associaled wilh Anihlijslcgiiiin oclnxiceiun, Hijpmim rhmlare, II. nisciforme 

 and Martiiicllia parpnrascens. Syd.: (R.); Near Faniien and Ordevig (!). 

 Vaago (R). Str. : Saxendalen (!). Nolso (R). Bordo: Graverdalen (!). 



166. P. Ludwigii (Spreng.), Webera Ludwigii Schimp. (Syn. ed. 2), 



W. Breidleri Jur., Pohlia Weigelii Lindb. 



B. , Nw. (alp. arcl.). — Fær., very rare. Ost.: Gronaskardslvil 

 between Skaalebotn and Andefjord, 480 m., on moist ground abundant 

 and fr. (!). 



