262 Beiträge zur Flora von Afrika. XIV. 
Campylium Sull. 
C. squarrifolium Broth. n. sp. 
Syn. Hypnum (Campylium) squarrifolium C.-Müll. n. sp. in sched. 
Dioicum; gracile, caespitosum, caespitibus latiusculis, densiusculis, 
lutescenti- viridibus, nitidiusculis; caulis procumbens, dense ramosus, 
ramis elongatis, pinnatim ramulosis, densiuscule foliosis, ramulis paten- 
tibus, brevibus, strictis, densiuscule foliosis; folia patula, secunda, con- 
caviuscula, ovato-lanceolata, breviter acuminata, marginibus erectis, superne 
minute serrulatis, nervis binis, brevibus, lutescentibus, cellulis elongate 
linearibus, alaribus paucis, magnis, hyalinis, fugacibus, omnibus laevissimis. 
Caetera ignota. 
Kamerun: N'dian, an überrieselten Felsen am Flusse (Dustin n. 709). 
Microthamnium Mitt. 
M. saproadelphum Broth. n. sp. 
Hypnum (Microthamnium) saproadelphum C.-Müll. in sched. 
Autoicum; tenellum, caespitosum, caespitibus mollibus, densis, 
latissime extensis, pallide vel lutescenti-viridibus, sericeis; caulis repens, 
valde flexuosus, vage ramosus, ramis arcuatis, dense pinnatim ramulosis, 
ramulis gracilibus, brevissimis, vix ultra 4 mm longis, patulis, strictis vel 
areuatulis, densiuscule foliosis; folia patentia, concaviuscula, laevia, 
caulina e basi truncata sensim angustata, piliformi-attenuata, marginibus 
basi parce reeurvis, integerrimis, enervia, cellulis elongatis, angustissimis, 
laevissimis, basilaribus infimis omnibus laxis, vesiculosis, hyalinis, ramu- 
lina eisdem caulinis similia, sed angustiora, marginibus distinetius revo- 
lutis, apice subintegris; bracteae perichaetii erectae, e basi vaginante 
sensim longe piliformi-attenuatae, superne minutissime denticulatae, basi 
laxe areolatae, enerves; seta vix 4,5 em alta, flexuosula, tenuis, purpurea, 
laevissima; theca nutans, turgide ovalis, minutissima, sicca deopereulata 
sub ore haud constricta, fusca; operculum e basi cupulato brevissime 
rostratum; caly ptra ignota. 
Kamerun: auf faulendem Holz bei Etome c. 360 m (Dusén n. 499), 
an Baumstämmen bei Buea, 3000 m (Juxawrn n. 96). 
Species elegantissima, tenella, mollitie nec non theca minutissima jam dignos- 
cenda. 
M. palmarum Broth. n. sp. 
Hypnum ( Microthamnium) palmarum G.-Müll. in sched. 
Autoicum; gracillimum, caespitosum, caespitibus densis, latissimis, 
pallide viridibus, aetate albescentibus, nitidiusculis, caulibus valde inter- 
textis; caulis tenuissimus, elongatus, repens, flexuosus, laxe foliosus, 
vage ramosus, ramis laxe pinnatim ramulosis, ramulis brevibus, plerumque 
arcuatulis, laxe foliosis; folia patula, concaviuscula, laevia, caulina ovato- 
