Contributions to the bryology and hepaticology of North America / by William S. Sullivant.

  • Sullivant, William Starling, 1803-1873.
Date:
1846
Catalogue details

Licence: Public Domain Mark

Credit: Contributions to the bryology and hepaticology of North America / by William S. Sullivant. Source: Wellcome Collection.

    26/46 (page 170)
    Descr. Planta late denseque csespitosa. Caules prostratse intricato-implexae, ramos breves erectos teretes 3 — 4 lineares simplices vel ramulosos emittentes. Folia undique imbricantia erecto-patentia ovata longe-acuminata, vel ovato-lanceolata concava, margine inferiore reflexa, fere toto ambitu serrata, costa paulo ultra medium evanescente instruc- ta, tenuissime lineari-areolata, cellulis ad angulos basis externos amplis quadratisque, e lutescente viridia nitentia. Perichaetialia convoluta-oblonga ex apice lato rotundo lacini- ato-dentato in productionem linearem serratam flexuosam subiter desinentia. Antheridia archegoniis immixta ad vaginulae basim; paraphysibus numerosissimis. Capsula oblonga, nunc subaequalis erectiuscula, nunc altero latere longiore convexiore paulo inclinata, ore subobliquo. Peristomii exterioris dentes lineari-lanceolati dense trabeculati, linea mediali notati; interioris processus e membrana lata carinati lineares pertusi longitudine dento- rum, ciliolis rudimentariis vel nullis interpositis. Annulus compositus revolubilis. Pe- dunculus e caule flexuoso-erectus 5-7-lineas longus, basi lenissime papillosus, superne sinistrorsum, inferne dextrorsum tortilis. Operculum convexo-conicum, plus minus elon- gatum, rectum vel incurviusculum. Calyptra non visa. Tab. I.—Fig. 1. A plant of the natural size. 2. The same, magnified. 3. A portion of stem. 4. The peristome. 5. Capsules. 6. Opercula. 7. The annulus. 8. The perichaeth. 9. Archegonium, antheri- dium and paraphysis. 10. Vaginula and reproductive organs. 11. Perichaetial leaves. 12. Stem and branch leaves. 13. Portions of leaf showing the reticulation. 14. A vertical section of the peristome, showing the columella, &c. All magnified except Fig. 1. 2. Schistidium ambiguum (sp. nov.) : monoicum, exiguum, pulvinato-caespitulosum ; caule parce ramoso; foliis oblongo-lanceolatis patulo-incurvis apice plus minus cano-piliferis, perichaetialibus multo majoribus erectis elliptico-lanceolatis in pilum hyalinum grosse dentatum productis fere suae longitudinis ; capsula immersa ob- longo-ovali, operculo convexo-conico brevi-rostrato ; calyptra cuculliformi. Hab. On dry rocks, near Santa Fe, Mr. Fendler. The long, serrated, diaphanous points of the large perichaetial leaves, the oblong-oval capsule, the small subconic operculum, and especially the cuculliform calyptra of this species, seem to require its separation from the variable Schistidium confertum, which in all other respects it closely resembles. Tetraphis pellucida, Hedio. Timmia megapolitana, Hedw. Weissia controversa, Hedw. W. curvirostris, Brid. Chiloscyphus polyanthos, Cord. Fegatella conica, Cord. Fimbriara fragrans, N. ab E. Junger- mannia barbata, Schreb. Madotheca platyphylla, Dumort. Marchantia polymorpha, L. Radula complanata, Dumort. Reboulia hemisphaerica, Raddi.