264 Beiträge zur Flora von Afrika, XIV. 
flexuosula, tenuis, pallide rubra, laevis; theca nutans, turgide ovalis, 
sicca sub ore constricta, pallida, laevis; peristomium duplex; exosto- 
mii dentes lanceolato-subulati c. 0,42 mm longi et c. 0,08 mm lati, alte 
lamellati, aurantiaei, apice hyalini; endostomium ciliis binis, bene evo- 
lutis praeditum; operculum alte conicum, obtusum; calyptra parce 
pilosa. 
Pondoland: ohne nähere Standorte (Bacumann n. 8). 
Species M. patenti (Hamp.) affinis, sed caespitibus rigidis, ramulis minus compla- 
natis, horride foliosis, foliis cellulis brevioribus nec non theca sub ore constricta optime 
diversa. l 
Isopterygium Mitt. 
I. plumigerum Broth. n. sp. 
Syn. Plagiothecium plumigerum C.-Müll. in sched. 
Species J. intorto (P. B.) Besch. simillima, sed foliis in acumen stric- 
tum, longiusculum subito contractis, integerrimis nec non seta breviore 
dignoscenda. , 
Kamerun: Batoki, an Felsen von verwittertem Basalte am Flusse 
Kelle (Dustn n. 124). 
Taxicaulis plumirameus C.-Müll. in Musci Africani n. 683, von Dusén bei Lifenja 
an faulenden Baumstámmen gesammelt, scheint mir von Z. plumigerum kaum ver- 
schieden zu sein, 
I. conangium Broth. n. sp. 
Syn. Taxicaulis conangius G.-Müll. n. sp. in sched. 
Autoicum; tenellum, caespitosum, caespitibus densis, latis, de- 
pressis, viridissimis, nitidis; caulis longe repens, pinnatim ramosus, 
ramis brevissimis, patulis, complanatis, dense foliosis, obtusis; folia 
disticha, patula, concaviuscula, caulina ovato-lanceolata, breviter acumi- 
nata, marginibus erectis, integerrimis, enervia, cellulis elongatis, angus- 
tissimis, basilaribus infimis laxis, omnibus laevissimis, ramea acuta nec 
acuminata, superne minutissime serrulata; bracteae perichaetii 
internae e basi oblonga subulatae, subintegrae, laxius reticulatae, cellulis 
basilaribus aureis; seta 1 cm alta, flexuosula, tenuis, lutescenti-rubra, 
laevissima; theca nutans, minuta, ovalis, macrostoma; operculum e basi 
conica breviter acuminatum. 
Kamerun: an lebenden und faulenden Baumstämmen nicht selten, 
Bonge (Dus£x n. 872), N'dian (n. 1034), Ekundu N'dene. 
Species I. subleptoblasto (C.-Müll.) Besch. affinis, sed colore viridissimo nec non 
foliis caulinis brevius acuminatis, rameis acutis nec acuminatis dignoscenda. 
I. Antunesii Broth, n. sp.; autoicum; robustum, caespitosum, 
caespitibus densiusculis, depressis, viridibus, nitidis; caulis repens, vage 
ramosus, ramis elongatis, complanatis, acutiusculis, densiuscule foliosis, 
pinnatim ramulosis, ramulis 1 cm vel paulum ultra longis, complanatis; 
folia disticha, laxe imbricata, concaviuscula, oblongo-lanceolata, margini- 
bus basi paulum revolutis, integerrimis, nervis binis, tenuibus, lutescentibus, 
