Page:Miscellaneousbot02brow.djvu/542

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526 ADDENDA TO CAPTAIN FRANKLIN S NARRATIVE.

praesertim G. leptophyllae analoga, diversa frondibus fer- tilibus distinctis et praesentia involucri dorsum totum pinnulae tegentis : His notis autem Cryptogramma convenit cum Pteridi thalictroidi Swartz (a nobis tredecem adhinc annis in Prodr. Fl. Nov. Roll. i. p. 154, uti genus dis- tinctissimum indicata). In hoc genere, (Teleozoma nob.) Capsular sessiles, annulo completo latissimo, distinctae in serie simplici insident venis costae parallelis, utrinque vel solitaries marginalibus, vel binis altera superficiaria. Teleo- zoma insuper insigne est sporis in ordine naturali forsan, in tribu quantum scio maximis obtuse trigonis pulchre striatis, puncto unico opaciore.

CRYPTOGRAMMA ACROSTICHOIDES.

Cryptogramma, frondibus bipinnatifldis, sterilium pin- nulis ovalibus crenatis ; fertilium demum explanatis, soris linearibus discum totum occupantibus.

Hab. In shady rocky woods, between lat. 56° and 60° north. (First found by Mr. Menzies at Nootka Sound.)

Desc Filicc 4-8-uncialis, glabra, laete virens, frondibus caespitosis, stipitatis, crasso-membranaceis opacis venis vix adversus lucem conspicuis.

Frondes exteriores caespitis steriles, circumscriptione lanceolatae bipinnatifidae apice pinnatae pinnis distinctis alternis, brevissime petiolatis ; pinnulis confluentibus, ovali- bus obtusis, crenatis, inferioribus passim dentatis, omnium venis e costa vix prominula acutangulis distinctis simpli- cibus bifidisve intra marginem crenaturae desinentibus. Stipites pallidi, subtus semiteretes antice bisulci, infra medium conspersi squamulis lineari-lanceolatis acumi- natis disco fusco-atro limbo pallido, supra glabri. Rachis epaleata, angusta, compressa, colore et fere substantia frondis. Frondes centrales f erf iles stiipite sterilium longiore alioqui simili insidentes bipinnatae : pinnae petiolatae ; pin- nulte omnes frnctiferae distinctae inferiores brevissime petiolatae ; ante explicationem involucri lineares, limbo utrinque recurvo efformante involucrum fornicatum discum

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