512 BULLETIN DE L'HERBIER BOISSIER (2me sÉp.). 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 longiusculo ovalis, rufo- 
purpurea. Spore 13 p. heves. Elateres 100 v, angusti, parum attenuati, 
spiris duplicatis filiformibus, laxe tortis in apices excurrentibus. Andracia 
mediana, interdum in caule simplici repetita, bracteis 2-3 jugis, basi 
ventricosis. Antheridia ignota. 
Hab. America sept. Washington Terr. (Rau). 
26. J. Dusenii 5t. Hedwigia, 1891, p. 209 (sub Nardia). 
Dioica, major, flaccida et tenerrima, pallide virens, dense depresso 
ciespitosa. Caulis ad 5 em. longus, e caudice repente mulliramoso ortus, 
procumbens, tenuis, simplex vel postice sparsim ramosus, sub flore inno- 
vatus, radicellis longissimis plus minus purpureis, e basi postica foliorum 
ortis, in caule fasciculatim decurrentibus. Folia caulina oblique inserta, 
parum imbricata, plano-dislicha, antice longe decurrentia, oblique ovata, 
apice rotundata. Cellule apice 27 yw, papuloso prominule, medio 27 »« 
38 y. basi 27 5X 5^ y, trigonis nullis, cuticula minute aspera. Folia flo- 
ralia bi- vel trijuga, imbricata, caulinis simillima, majora, valde oblique 
inserta, antice attenuatim decurrentia, erecto-connivenlia, margine antico 
recurvo, repando, suprema maxima, crispata, tertio infero perianthii 
oblique inserta. Perianthia parum emersa, oblongo-fusiformia superne 
triquetra vel plicis inlerjectis pluriplicata, ore parvo contracto 5 fido setu- 
loso. Capsula parva, globosa, longe pedicellata. Andrecia longissime spi- 
cata, bracleis ad 26 jugis, basi saecatis superne squarrose recurvis dian- 
dris. Antheridia globosa breviter stipitata. 
Hab. Kamerun (Dusén). 
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 cespitosa. 
Caulis e caudice subterraneo ramoso ortus, 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 remoliuscula, antice parum decurrentia, subrotunda, oblique 
patula vel cauli a latere appressa. Cellule apice 18 y, subapicales 27 p, 
medio 27 »X 40 x. basi 27 5X 50 y trigonis magnis subnodulosis. Folia 
floralia trijuga conferta, caulinis majora, subtransverse inserta, condupli- 
calim concava, e basi vaginante recurvo-patula, suprema erecta. Perian- 
lhia magna oblongo-fusiformia terlio supero exserto pluriplicato con- 
tracto, ore parvo denliculato. Capsula longe pedicellata, globosa. Spore 
74 
