39 
12. Leucobryum longifolium Hpe.., forma cxaltata. — Nr. 5157. 
fa minus. — Nr. 5191, 3309, 4520, 4521. 
13. Hyrnenoslomum fasciculatum Hpe., nova species. 
Dioicum, dense cæspitosum, humile, rufescente viride. Caulis 
basi simplex laxe foliatus, superne fasciculato-ramosus fastigiatus. 
Folia sicca uncinato-crispala, humida erectiuscula, inferiora bre- 
viora, cornalia longiora, c basi parce oblonga, antice constanter 
arcle involuto-canaliculalo-lanceolato-subulata integerrima; nervo 
lutescente percursa diaphano-apiculata: cellulis inferioribus teneris 
subhexagonis lucide diaphanis, sequentibus minoribus et crassio- 
ribus, indistincte rectangulis lutescente diaphanis, in subula in¬ 
feriøre seriatis parvis subquadrato-angulalis diaphanis, in subula 
superiore densioribus rotundatis incrassalis subopacis; perichæ- 
tialia laxe vaginantia, duo intima latiora, in cæteris caulinis 
æmulantia. Sela erecta lutescens, caulem subæquans. Theca 
elliptico-ovata, rubra, aurescente nitida , microstoma, evacuata 
leptoderma pallida, ore rubro ornata; operculo breve rostrato; 
theca breviore lutescente. 
Nr. 5149 et 5164. 
Hymenostomo Vallis Gratiæ simile, caule superne fasciculato, 
theca elliptico-ovata ore coarctata ab omnibus affinibus diversum. 
14. Trematodon reflexus C. M. Syn. — Nr. 5180. 
15. Cer ato don Brasiliensis Hpe., nova species. 
Dioicus, laxe cæspitosus, sesqui-aut biuncialis, purpurascens. 
Caulis gracilis erectus semiuncialis diviso-ramosus. Folia sicca 
accumbentia parum crispato-tortilia, humida erectiuscula, inferiora 
breviora ovato-lanceolata, superiora longiora uncinato-tlexa atte- 
nuato-acuminata, carinato-concava margine reflexo integerrima; 
nervo rufescente apice evanido; cellulis basilaribus rectangulis, 
cæteris quadratis minoribus, omnibus chlorophyllosis; tota folia 
rufescente diaphana; perichætialia interiora prorsus convoluta 
latissime oblonga breve obtuse acuminata integerrima, nervo 
striato mox evariescente obscuro; cellulis laxioribus lutescentibus 
