4GG 



MUSCI. 



Capsula cum apopbyse sicca ovata, niadida obovata vel obovato, 

 piriformis, situ fere horizontalis, requalis, exannulata, saturate 

 rubro-bruunea, sublente modice augeute areolis oblongis qua- 

 dratisve reticulata. 



Membrana interna leviter adnata, subsessilis. 



Peristomium exterius lutescenti-albidum, capsulam ipsam sub- 

 sequans, humore demum arete reflexile, e dentibus 16, subu- 

 late- setaceis, late trabeculars, linea longitudinala obsolete no- 

 tatis, punctulato-opacis scabrellisque. 



lnterius e ciliis totidem alternantibus paullo brevioribus, sub- 

 erectis, biuatim compositis, punctulato-opacis, scabrellis, 

 basin versus saepe obsolete et minutissime perforatis, et ima 

 basi unitis in membranam brevissimam dentium peristomii ex- 

 teriotis basibus arete cohaerentem. 



Columella inclusa, breviter apiculata. Sporula in acervulo vi- 

 ridia, immersa globosa laevia, diaphana. 



Operculum conico-subulatum, rostro acuto recto, capsulam cum 

 a^ophyse sub-sequans, brunuescenti-aureum. 



Calyptra mitraeformis campanulato-conica, basi (demum) fissa, 

 pilis simplicibus longis acutis pallide stramineis hyalinis fim- 

 briata, obsolete (madida saltern) reticulata, basi lutescens 

 rostro sanguineo brunneo vel atrato. 



Character generis in Muscol. Britt. loc. cit erroneus, praesertim 

 quoad D. heteromallam, quaecus species neckerae cujus peris- 

 tomii interioris membrana ba3ilaris, quamvis brevis, facile de- 

 monstrate. Dubitare igitur licet de geuere Auomodon 

 ejusdem libelli. 

 Plant magnified. 

 J. Cauline leaf, la. margin of cauline leaf magnified. 



2. Perichaetial leaf. 



3. Capsule and calyptra. 



4. Capsule and operculum. 



5. Capsule moistened. 



6. Portion of the capsule and both peristomes viewed in- 

 ternally. 



3a. Cilium of inner peristome with the bases of the teeth 

 of the outer. 



8. Columella and portion of the inner membrane. 



9. Sporula. It. Ass. 525. 



