— 143 — 



Fissidentaceae. 



Fissidens obsoktidens C. Miill. var. schistophila Broth, n. var. — Robustior; 

 folia latius limbata. 



Ruanda: ]\Iohasi-See, trockene Wasserrinne in einer Schlucht der Berg- 

 steppe auf Tonschiefer, ca. 1600 m ii. M. (fruchtend im Juli 1907 — n. 800). 



Fissidens (Bryoidium) brachycaulon Broth, n. spec. — Dioicus; pusillus, gregarie 

 crescens, lutescenti-viridis, vix nitidiusculus ; cauHs brevissimus, basi radiculosus, 

 dense fohosus, simplex; folia c. 4 juga, erecto-patentia, strictiuscula, infima 

 minora, oblonga, breviter acuminata, acuta, comalia longiora et angustiora, 

 lanceolato-acuminata, limbata, limbo lutescente, angusto, integro, in foliis coma- 

 libus continuo, in caeteris infra apicem evanido, lamina vera ad medium folii 

 evanida, lamina apicali ad basin folii enata ibidemque angustata, nervo crassius- 

 culo, continuo vel infra summum apicem folii evanido, cellulis rotundato-hexa- 

 gonis, c. 0,010 mm, pellucidis, laevibus; seta terminalis, c. 7 mm alta, tenuissima, 

 flexuosula, lutescenti-rubra ; theca minuta, erecta, ovalis, sicca deoperculata sub 

 ore vix constricta, pallida; operculum e basi conica longe aciculare; cahptra 

 cucullata, operculum tantum obtegens. (Taf. XI, Fig. 7.) 



Planta mascula ignota. 



Bukoba - Bezirk: Buddu-Wald, auf lehmigem Waldboden (fruchtend im 

 Juni 1907— n. 243). 



Species caule brevissimo, foliis pro plantula longis, angustis, seta elongata 

 et theca minuta, erecta dignoscenda. 



Fissidens (Heterocaulon) itarensis Broth, n. spec. — iJioicus; tenellus, gregarie 

 crescens, viridis, opacus; caulis sterilis c. 3 mm longus, cum foliis c. 1,5 mm 

 latus, dense foliosus, simplex; folia c. 9 juga, sicca homomalla, humida 

 erecto-patentia, oblongo-ligulata, acuta, lamina vera hyalino-limbata, paulum 

 ultra medium folii producta, lamina dorsalis ad basin nervi enata ibidemque 

 rotundata, elimbata, ob cellulas prominentes minutissime serrulata, lamina api- 

 calis elimbata, serrulata, nervo pellucido, infra summum apicem folii evanido, 

 cellulis rotundato-hexagonis, 0,005 — 0,007 nim, chloroph3dlosis, papillosis; caulis 

 fertilis brevissimus; folia paucijuga, late vaginantia, elimbata, ad apicem vaginae 

 eroso-denticulata, raptim in subulam integram attenuata, lamina dorsali nulla, 

 cellulis laxis, teneris, oblongis; seta c. 7 mm alta, tenuissima, lutescens; theca 

 subnutans, minuta, as3^mmetrica, ovalis, sicca deoperculata arcuatula et infra 

 orificium constricta, pallida; operculum conico-subulatum ; calyptra conica, 

 operculum tantum obtegens. (Taf. XII, Fig. 9.) 



Planta mascula ignota. 



Bukoba - Bezirk: bei Kara, Buddu-Wald, auf etwas lehmigem Wald- 

 boden (fruchtend im Juni 1907- — n. 242, 248). 



Fissidens (Semilimbidium) bukobensis Broth, n. spec. — Autoicus; tenellus, sub- 

 gregarie crescens, viridis, opacus; caulis 3 — 5 mm longus, cum foliis vix 2 mm 



