GVMNOSTOMUM. 



39/ 



roourvata, leviter repanda marginibus vix iucurvis inio saepa 

 leviter recurvis, percursa vena crassa sursum valde attenuata 

 et vix completa ; areolis iniuutis. 



Ferichsetialia exteriora conformia, marginibus superne involutis, 

 interiora minora integerrima vena infra apiccm evanida. Seta 

 ob innovationes interdum pseudo-lateralis, filiformis, rubes- 

 cens, siceitate tortilis. Vaginula obclavata, basi paraphysi- 

 bus pistillisque paucis obsita. 



Capsula leviter inclinata, subin&quilateralis brunnea, sub len- 

 tem modice augentem areolatim striata. Annulus insignis, 

 initio horizontalis, operculo detruso erectus. Membrana in- 

 terna libera, subsessilis. 



Columella filiformis, longitudine fere thecao. 



Sporula minuta, rotundata, loevia, in acervulo fusco-viridia, ira- 

 mersa diaphana, subunimia. 



Operculum subulatutn, capsula subquadruplo brevius, rostro 

 sa?pius declinato. 



Calyptra dimidiata laevis, semel bisxe torta. 



Variat statura, foliis madore etiam margine involutis, et obso- 

 lete denticulatis. An ideo posterum cum G. involuto. 

 Hook. Muse. Exat p. 2 t. 154:, conjungendum ? 



1. Capsule and operculum. 



2. Apex of capsule. Annulus reflexed. 



3. Mouth of capsule (dry) vertically viewed. 



4. Long section of capsule (hypothetical figure.) 



5. Upper portion of columella. 



6. Epiphragma, only seen once. 



7. Sporula. 



8. Operculum. 



8a. Long section of ditto. 



9. 9. Calyptra. 



10. Lea*f.— It. ass. 529. 



7- Gymnostomum recurvum, Gr. PI. XCII. Fig. II. 



Cauleramoso, foliis ascendentibus lanceolatis acuminatis integer- 

 ri'iiis marginibus recurvis vena crassa in mucroncm excur- 

 rente, capsula ovato-cylindraoea, operculo subulate 



