332 LES MOUSSES 



NECKERACEyE. 



(Brotherus, Musci, p. 775.) 



I. RITEABERGIEtë. 



(Brotherus, Musci, p. 786.) 



RUTENBERGIA Geh. et Hpe. 

 (Brotherus, Musci, p. 786.) 



1. Butenbergia madagassa Geh. et Hpe, apud G. Miill. , in Abhandl. naturwissens. Ver. Bremen, Vil, 

 p. 210, tab. 11, fig. C(i88i). Besch. , FI. bryol. Réunion, etc., in Ann. Se. nat. Bot., 6° sér. , 

 X,p. 33i [190] (1881). 



Dioica; caulis primarius prorepens rufo-tomentosus , secundarius ramis simplici- 

 bus vel dichotomis subterelibus crassis i-3 uncialibus cylindraceis obtusis vel plus 

 minusve filiformi-altenuaiis jlexuosis ; jolia sicca accumbentia , humida ereclo-patula , 

 jlavo-limbata , e basi laie excavata lalere rotundato-auriculata late ovata acuminata 

 acumine convolulo longe aristata, denticulata, nervo rufescenti in aristam evanido, 

 cellulis alaribus brève bacillarihis vel vermicularibus transverse isolatis subdiaphanis , 

 lœvibtis, intermediis basilaribus erectis bacillarihis diaphanis, versus latera densis- 

 sime aggregatis minoribus ellipticis parce incrassatis. Perichœtia lateralia 3— à appro- 

 ximata. Folia perichaeiialia convoluta oblongo-lanceolata loriforme acuminata vel 

 subulata, apice plus minusve serrato-dentata intense crocea, nervo angusto apice 

 evanescenle, cellulis basilaribus linearibus, versus apicem jolii sensim brevioribus, 

 summis ellipticis vel vermicularibus. Theca brevisela inserta recta oblonga, cylindrica 

 leptoderma, ore ruberrimo, operculo lenui subulato recto; annulas nullus. Peristo- 

 mium duplex: externum e denlibus 16 lanceolato-subulalis remote distantibus conver- 

 gentibus pallide favescenlibus dense trabeculaiis , linea longitudinaliter notatis intus 

 armalis composilum; internum : membrana brevissima fragilis vix sulcata valde 

 hyalina, in dentés brèves arliculatos simplices fragilissimos^ producta. Calyptra 

 mitrijormis, pilis comeis viridibus basi crispulis apice elongatis comosis vestita. 

 Sporœ magnœ virides jlaccidœ tetragonœ^. (G. Millier, loc. cit.) 



Zones moyenne et supérieure des forêts : forêt à Test d'Ambatondrazaka (Rutenherg); 

 entre Fianarantsoa et Mananjary (D r Besson), Amhondrombé (B. P. Talazac). Zone du Plateau 

 central: Iraerina (B. P. Camboué); pays Betsileo, sans indication de localité (B. P. Montaut). 



1J Sic. — (2) Bescherelle (loc. cil.) reproduit sans modifications la description de Millier, en 

 ajoutant seulement : rr vaginula pilis contortis obtecta ». 



