400 



MUSCI. 



Capsula ereota, oblongo-ovata, apophysin brevem obconicam ter 



nrinans, siccitate subcylindracea, collum infra angustata. 

 Membrana interna arote adnata. 



Peristomii dentes madore incumbenti-oonniventes, siccitate erec- 

 tiusouli apicibus inflexis, distantes, latiusculi, crassi, ooriaoei, 

 lineia tribus, quarum centralis conspicnosior exarati, lineisque 

 transversia plurimis ; ctrabeculati, sub lente aero augentem 

 minute pnnctualati. 



Columella cylindracea, inclusa. 



Sporula in acervulo sordide lutescentia, irregularia, laevia, sse- 

 pius eztremitate una alteravo attenuata. 



Operculum ut in O. serrato, asepiua cum calyptra secedens. 



Calyptra mitrseformis, basi ventricosa, et profunde 4-partita, 

 laciniis abrupte inflexis, fundum vol os calyptra) claudcnti- 

 bus, apice subulata sub lentem papillis scabra, cccterum gla- 

 bra. 



1. Capsule (stiffly drawn.) 



2. Portion of capsule and peristome seen internally. 



3. Tooth of peristome. 



5. Operculum. 



6. Calyptra. 



6a. One of the inflected laciniie pulled out. 



7. Leaf. 



VII. Orthotriciium, Hedw. 

 1. Orthortrichum concavifolium) Gr. PI. LXXVI. Fig. III. 



Caule fastigiatim ramoso squarroso, foliis cordatis vol cordato- 

 ovatis concavissimis broviter apiculatis evanidiveiis peri- 

 chrotialibus inarginibus insigniter revolutis vena excurreuti 

 cuspidatis, capsula oblongo-urceolata imiuersa, peristomio 

 simplice, operculo conico. 



Hab : Inveni specimen anieum fructiferum mixtum cum Neck- 

 era aurea e Mumbree, 



Caulis erectus, isepiua fastigiatim ramosus, uncialis. Folia undi- 

 que imbricata, siccitate arete adpressa, madore patentissiina, 



