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PARTS OF FRUCTIFICATION IN MOSSES.
349

masculis, et calyptrâ penitùs convenit; indè aliquo modo Buxbaumiæ accedens, præsertim figurâ capsulæ, et structurâ columellæ. Peristomio autem ab omnibus diversissimus.


Dawsonia polytrichoides.

Tab. II [XXIII].[1] Fig. 1.

Patria. Novæ Hollandiæ ora orientalis, extra tropicum.

Statio. Ripæ subumbrosæ rivulorum, ad radices montium, in vicinitate Portûs Jackson.

Desc. Cæspites laxi, amorphi. Radiculæ tenuissimæ, tomenti instar, caudicem descendentem brevem inves- [317 tientes. Caulis simplicissimus, erectus, strictus, 2–3-uncialis, basi reliquiis foliorum squamatus, suprà densè foliatus. Folia, e basi dilatatâ semiamplexicauli membranaceâ fuscâ, lineari-subulata, opaca, viridia, marginibus longitudinaliter dorsoque apicis denticulatis, spinulis sursum crebrioribus majoribusque, concaviuscula, patula, siccatione appressa, canaliculata, superiora vix semuncialia, inferiora sensim breviora.

Masculi Flores terminales, discoidei. Folia perigonialia cuneato-orbiculata, mucronata, integerrima, semimembranacea, exteriora sensim majora. Fila succulenta numerosa, articulata, basi attenuata. Antheræ flosculi singuli 6–8, cylindraceæ, brevissimè pedicellatæ.

Femineus Flos in distincto individuo. Seta terminalis, solitaria, erecta, lævis, nitens, rufo-fusca, caule ter brevior, foliis terminalibus duplò longior. Vaginula cylindracea, stricta, glabra, tegmine pilorum calyptræ exterioris instar instructa.

Calyptra duplex: exterior constans pilis intertextis dimidio inferiore tenui flexuoso pallido ramuloso edentulo, superiore ferrugineo stricto denticulato: interior membranacea straminea, capsulæ maturæ subulata, suprà longitudinaliter fissa, apice solum denticulata.

Capsula nutans, angulum ferè rectum cum setâ efformans,

  1. The figures within brackets refer to the numbering of this and subsequent plates in the 'Linnean Transactions.'—Ed.