512 BULLETIN DE L’HERBIER BOISSIER (2m séR.). Jungermannia. 
hamatis. Perianthia longe exserta, anguste clavato-cylindrica vix plicata, 
ore amplo breviter lobato, lobis longe denseque setosis, selis strictis 
erectis vel conniventibus. Capsula in pedicello longiuseulo ovalis, rufo- 
purpurea. Spore 13 u, læves. Elateres 100 y, angusti, parum attenuati, 
spiris duplicatis filiformibus, laxe tortis in apices excurrentibus. Andrecia 
mediana, interdum in caule simplici repetita, bracteis 2-3 jugis, basi 
ventricosis. Antheridia ignota. 
Hab. America sept. Washington Terr. (Rau). 
26. J. Dusenii St. Hedwigia, 1891, p. 209 (sub Nardia). 
Dioica, major, flaccida et tenerrima, pallide virens, dense depresso 
cæspitosa. Caulis ad 3 cm. longus, e caudice repente multiramoso ortus, 
procumbens, tenuis, simplex vel postice sparsim ramosus, sub flore inno- 
valus, radicellis longissimis plus minus purpureis, e basi postica foliorum 
ortis, in caule fasciculatim decurrentibus. Folia caulina oblique inserta, 
parum imbricata, plano-disticha, antice longe decurrentia, oblique ovata, 
apice rotundala. Gellule apice 27 y, papuloso prominulæ, medio 27 X 
38 u. basi 27 X 54 u, trigonis nullis, culicula minute aspera. Folia flo- 
ralia bi- vel trijuga, imbricata, caulinis simillima, majora, valde oblique 
inserta, anlice attenuatim decurrentia, erecto-conniventia, margine antico 
recurvo, repando, suprema maxima, crispata, tertio infero perianthii 
oblique inserta. Perianthia parum emersa, oblongo-fusiformia superne 
triquetra vel plicis interjectis pluriplicata, ore parvo contracto 5 fido setu- 
loso. Capsula parva, globosa, longe pedicellata. Andræcia longissime spi- 
cata, bracleis ad 26 jugis, basi saccatıs superne squarrose recurvis dian- 
dris. Antheridia globosa breviler stipilata. 
Hab. Kamerun (Dusen). 
27. J. infusca (Mitten) Linn. Soc. 1891, p. 196 (sub Plectocolea). 
Syn. : Nardia grandis St. Bull. Herb. Boiss. 1897, p. 100. 
Dioica, major, olivacea, in solo argillaceo dense depresso cæspitosa. 
Caulis e caudice subterraneo ramoso orlus, ad 2 cm. longus, strictus, 
crassus, procumbens, simplex, sub flore fem. fasciculatim ramosus, e 
facie postica flagellifer, radicellis pallidis vel roseis vel purpureis. Folia 
caulina remotiuscula, antice parum decurrentia, subrotunda, oblique 
patula vel cauli a latere appressa. Cellulæ apice 18 y, subapicales 27 y, 
medio 27 X 40 y, basi 27 50 y trigonis magnis subnodulosis. Foli@ 
floralia trijuga conferta, caulinis majora, sublransverse inserta, condupli- 
calim concava, e basi vaginante recurvo-palula, suprema erecla. Perian- 
thia magna oblongo-fusiformia Lertio supero exserto pluriplicalo con- 
tracto, ore parvo denticulato. Gapsula longe pedicellata, globosa. Sporæ 
74 
