Bd. IV: 5) LA FLORE BRYOLOGIQUE. 121 
Stenomitrium (MıTT.) BROTH. in Nat. Pflanzenfam., Musci, p. 464. 
S. pentastichum (MonT.) BROTH. loc. cit. 
t Syll., p. 31. — Zygodon penta- 
'cha ©. MÜLL. in Oesterr. bot. Zeit- 
Aulacomnium fentastichum MoNT. in Ann. sc. nat., 
stichus C. MüLt. Syn., I, p. 675. — Pentastichella 
schrift. 1897, p- 421. 
In arborum truneis. 
Patagonie occidentale: Rio Aysen (DUSEN). 
Distrib. geogr. Chili. 
Orthotrichum Hepw. Deser., I, p. 96. 
Subgen. Muelleriella (DUS.) CARD. 
O. crassifolium Hook. Fir. et Wirs. in Lond. Journ. of Bot., 1844, p. 546, et Fl. 
Entareza pas rennen 
Ulota crassifolia JaEG. Ad., I, p: 442. — Muelleriella erassifolia Dus. in Bot. Not., 1905, p. 304. 
In saxis et scopulis maritimis, nec non ad ramos arbustorum. 
Detroit de Magellan: Port-Famine (ANDERSSON). 
Ile Desolation (DusEn). Terre-de-Feu: Ushuaia (SPEGAZZINI). Ile Basket, baie 
Desolation (SPEGAZZINI). Ile Hermite (HOOKER, HARIOT). Cap Horn (Exped. 
WILRES). Ile des Etats: Port S!-Jean, Rocher des Pingouins (SPEGAZZINI). 
lles Falkland (HOOKER). 
Distrib. geogr. Iles Auckland et Campbell, Georgie du Sud, Kerguelen. 
Subgen. Calvptoporus LINDB. Musci scand., p. 28. 
O. vittatum CARD. Not. prelim., in Bull. Herb. Boissier, 2°”® ser., V, p. 1005. 
Monoicum, tenellum, laxiuscule pulvinatulum, lutescens. Caulis brevis, fastigiatim 
ramosus, 3—6 millim. longus. Folia conferta, madida erecto-patentia, sicca erecta, 
subflexuosa, anguste lineari-lanceolata, 1,5 2,4 millim. longa, 0,25—0,4 lata, superne 
canaliculata, sensim angustata, apice obtusiusculo, interdum subacuto, marginibus 
planis, integris vel cellulis convexis subcrenulatis, costa basi 50—70 u crassa, sub 
apice evanida, cellulis mediis et superioribus majusculis, rotundatis, ovatis oblongisve, 
utriculo primordiali distincto, parietibus crassis lutescentibus, laevibus sed utraque 
pagina convexis, inferioribus rectangulis, oblongis, margines versus subquadratis, 
parietibus angustioribus. Folia perichaetialia intima ovato-oblonga, concava, late ob- 
tuseque acuminata, laxius reticulata. Capsula emersa, madida oblonga, laevis, deo- 
perculata 1,5—2 millim. longa, 0,5—0,6 crassa, sensim collo in pedicello subaequi- 
longo defluente attenuata, sicca anguste cylindrica, sub ore contractula, profunde 
8-sulcata, fasciis 8 pulcherrime distinctis, aureo-lutescentibus, e cellulis majoribus 
rectangulis, 4—5-seriatis formatis, stomatibus profunde immersis, inter fascias in 
capsulae parte media, quidem in parte superiore nec in collo sitis, operculo longe et 
1360/07 Schwedische Südpolar-Expedition 1901—-1903. 16 
