V. F. Brotherus, Musei africani. Il. 273 
Leucomium Mitt. 
L. perglaucum Broth. n. sp. 
Hypnum (Leucomium) perglaucum C.-Mull. in sched. 
Autoicum; caespitibus densis vel laxioribus, depressis, glauco-viri- 
dibus, nitidiusculis; caulis repens, laxe pinnatim ramosus, ramis brevibus, 
complanatis, densiuscule foliosis, obtusis; folia sicca vix mutata, media 
ovato-lanceolata, piliformi-acuminata, lateralia oblongo-elliptica, piliformi- 
acuminata, omnia marginibus integerrimis, enervia, cellulis laxe rhomboi- 
deis; seta 8—13 mm alta, flexuosula, tenuissima, rubra, summo apice 
parce scaberula; theca nutans, ovalis, estrumosa, sicca sub ore haud vel 
vix constricta, atro-purpurea; peristomium ut in L. sirumoso ; oper- 
culum longe rostratum; calyptra glabra. 
Kamerun: an Steinen bei S. Isabel (Dust n. 93) und bei Bibundi 
(JuxaxEn), auf faulendem Holz bei N'dian (Duséy). 
Sematophyllaceae. 
Rhaphidostegium Schimp. 
Rh. Dicnemonella Broth. n. sp. 
Hypnum (Aptychus) Dienemonella C.-Müll. in sched. 
Autoicum; caespitosum, caespitibus densiusculis, sordide fusces- 
centi-viridibus, nitidiuseulis; caulis repens, vage ramosus, ramis elon- 
galis, assurgentibus, dense foliosis, pinnatim ramulosis, ramulis teretibus, 
brevibus, suberectis, homomallophyllis; folia erecto-patentia, apice 
recurvo, concava, ovalia, breviter acuminata, marginibus recurvis, inte- 
gerrimis, enervia, cellulis anguste ellipticis, apicalibus brevioribus, basila- 
ribus infimis aureis, alaribus 6—8 ventricosis, aureis, omnibus laevissimis; 
bracteae perichaetii erectae, oblongo-lanceolatae; seta 4 cm vel paulum 
ultra alta, tenuis, flexuosula, rubra, laevissima; theca erecta, minuta, 
gibboso-ovalis, sicca deoperculata sub ore paulum constricta, fusca, laevis; 
peristomium ut in Rh. circinali; operculum longe rostratum. 
Kamerun: an Steinen bei Batoki (Dusén n. 142) und an Baumzweigen 
bei Bibundi, Cap Delumscha (Juxsner). 
Species Rh. circinali (Hamp.) affinissima, sed foliis angustius areolatis dignoscenda, 
Rh. Sauloma Broth. n. sp. 
Hypnum (Aptychus) Sauloma G.-Müll. in sched. 
Species Rh. Dienemonellae valde affinis, sed statura graciliore, ramulis 
complanatis, foliis horride patentibus, minime secundis nec non seta 
tenuissima, breviore dignoscenda. 
Westafrika: Liberia, an Steinen bei Monrovia (Dusty n. 87). 
Rh. subcurvulum Broth. n. sp. 
Hypnum (Aptychus) subcurvulum C.-Müll. in sched. 
Species Rh. Dicnomonellae affinis, sed rigiditate, caule densissime 
Botauische Jahrbücher. XXIV. Bd. 18 
