330 J. TRIANA ET J.-E. PLANCUON (e. HAMPE), 



rans, gracilis, superne torquescenti-tortilis, glabra, erecta; 

 theca ovato-elliptica, piriformis, octies manifeste costata; oper- 

 culo conico-subulato, recto, brevi; peristomium duplex, brevi- 

 ter tubulosum ; dentibus exter. lato-lanceolatis flavicantibus 

 refïexis, inter. membrana albida ; laciniis latis, conniventibus, 

 erectis. Galyptra rufescenti-aurea, longa, profonde laciniata, 

 glabra. 



Bogota, Pacho, altit. 2200 metr., in sylv. ad arbores, julio, 1863, 

 leg. A. Lindig. 



Ab priore gracilitate, foins seriatim dispositis brevioribus, seta lon- 

 giore pseudolaterali, theca magis piriformi et peristomii dentib. ext. 

 refïexis satis differt. 



5. Macromitrium crenulatum Hpe. — Dioicum, pulvinatim 

 expansum, unciale et altius, ferrugineo-rufescens, prorepens, 

 subfastigiatum. Caulis adscendens, diviso-ramosus, basi fusco- 

 tomentosus, ubique dense foliatus. Folia undique dense imbri- 

 cata, infra parce noduloso-aspera, profonde sulcato-carinata, 

 elongato-lanceolata, versus apicem crenulato-dentata, sicca un- 

 cinato-crispula, laxe contorta ; nervo involuto rufescente, ante 

 apicem evanido ; cellulis inferioribus linearibus , intermediis 

 abbreviatis, in lamina superiore dense congestis, papilloso- 

 punctatis; tota folia lutescenti-diaphana. Seta semiuncialis et 

 longior, glabra, erecta, rufescens, foscata. Theca erecta, piri- 

 formi-ovata, sub ore contracta, humida octies angulata, sicca 

 costata, rufescenti-brunnescens ; operculo pallidiore, umbonato- 

 subulatOjthecamsubsequan te, recto; peristomium duplex, brevi- 

 ter tubulosum ; dentibus exter. aurantiacis late lanceolatis, siccis 

 refïexis, inter. laciniis subconformibus erectis albidis ; calyptra 

 profonde laciniata, thecam fere totam obtegente, rufescenti- 

 fusca, glabra. 



Bogota, Tequendama, altit. 2500 metr. , in sylvis, etiam Pacho, altit. 

 2200 metr., julio, augusto leg. A. Lindig. Rio Hacha, Sierra nevada, 

 Linden. 



Ab prioribus satis differt : foliis profunde sulcatis, statura et colore. 

 M . guatemalensi proximum, sed foliis apice crenulato-dentatis diversum. 



