799 



Bryum Reyeri n. sp. 



Von 



J. Breidler. 



(Vorgelegt in der Versammlung am 7. December 1887.) 



Caespites densi, tumescentes, superne virides vel olivacei rufo-varie- 

 gati, subnitentes, inferne fusci vel atro-rubentes. Gaules validi, rubiginosi 

 et atro-rubiginosi, 3 — 12 cm. dlti, pluries dichotomo-ramosi, usque apicem ver- 

 sus tomento radiculoso atroobtecti, hie illic ex foliorum axillis ramulos gra- 

 ciles, laxe- et minute-foliosos emittentes. Folia ad basin innovationum remota, 

 minuta, 0'5—0'6 mm. longa, 0'33—0'45 mm. lata, omnino rubentia, late-ovata, 

 obtusa vel aeutiuscula, margine piano, costa in vel sub apice evanida, ascen- 

 dendo sensim majora; superiora et comalia conferta, erecto-patentia, 2'5 — 3' 3 mm. 

 longa, l—l'3mm. lata, e basi angustata decurrente, oblongo- et ovato-lanceo- 

 lata, breviter et acute-acuminata vel apiculata, mollia, concava, hic illic leviter 

 plicata, margine subflexuoso, inferne latiore, superne usque apicem versus in- 

 aequdliter angustissime reflexo, integro vel apice obsolete serrulato, costa plus 

 minusque flexuosa, rubente et atro-rubiginosa, in statu juniore inferne rubente, 

 superne viridi, semitereti, dorso prominente, ad basin crassa, 07— O l mm, 

 lata, in medio folii 0' 03— 04 mm. lata, apicem versus valde attenuata, O'Ol — 

 0'015 mm. lata, saepe vix visibili, in apiculo acuto, rubente, quandoque leniter 

 recurvo excurrente, vel sub eodem dissoluta; siccitate rugulosa., varie flexuosa, 

 erecto-patentia vel laxe accumbentia; cellulis basilaribus rubiginosis vel vinoso- 

 rubentibus, hexagono-rectangulis, valde incrassatis, 035— 0'08 mm. longis, 

 013—0 023 mm. latis, hic illic in parietibus longitudinalibus porosis ; cellulis 

 superioribus angustissimis, inaequalibus, elongato-rhomboideis et sublinearibus ^ 

 hic illic plus minusque flexuosis, 033 — O'l mm. longis, 0'006—0012 mm. latis; 

 marginalibus paulum angustioribus, aetate provecta rubentibus, limbum an- 

 gustissimum, quandoque indistinctum , formantibus. Flor es dioici; femi- 

 nei crassiusculi. Bracteae perigynii exteriores, foliis comalibus similes; 

 intimae minutae, plerumque rubentes, 6—1 mm. longae, 3— 4 mm. latae, 



