. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. i. SCHIZAEA J. E. Smith, Mem. Acad. Turin 5: 419. pi. 19. f. 9. 1793. Mostly small plants, with erect or recurved slender filiform simple or dichotomously divided or cleft leaves. Sporanges in 2 rows along the close slender segments of small pin- nate terminal spikes and partially protected by the narrowly reflexed indusiiform margin. [Greek, in allusion to the


. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. i. SCHIZAEA J. E. Smith, Mem. Acad. Turin 5: 419. pi. 19. f. 9. 1793. Mostly small plants, with erect or recurved slender filiform simple or dichotomously divided or cleft leaves. Sporanges in 2 rows along the close slender segments of small pin- nate terminal spikes and partially protected by the narrowly reflexed indusiiform margin. [Greek, in allusion to the divided or deeply cleft leaf-blades of some A genus of about 25 species, of wide geographic dis- tribution, mostly in tropical regions. Type species: Schizaea dichotoma (L.) J. E. Smith. i. Schizaea pusilla Pursh. Curly-grass. Fig. 19. Schizaea pusilla Pursh, Fl. Am. Sept. 657. 1814. Rootstock minute, horizontally creeping, the leaves tufted. Sterile leaves linear, very slender, flat- tened and tortuous. Fertile leaves longer, 3'~5' high, the fertile portion terminal, consisting of about S pairs of crowded pinnate divisions, form- ing a distichous spike; sporanges ovoid or pyriform, sessile in two rows along the single vein of the nar- row incurved linear divisions of the fertile spike, partially concealed by the incurved hairy margins. In wet soil, pine barrens of central and eastern New Jersey, the historic region. Also in Newfoundland and Nova Scotia. Rare and local. 2. LYGODIUM Sw. Schrad. Journ. Bot. 18002: 106. 1801. Twining vine-like ferns. Leaves elongate, the rachis wiry and flexuous; leafy parts con- sisting of the stalked palmately lobed or pinnate (or compound) secondary pinnae, borne in pairs upon short stalks arising alternately from the rachis. Sporanges borne on contracted divisions of the leaf, as short or elongate spikes, the lower surface bearing a double row of imbricate hood-like indusia fixed by their broad bases and concealing each I


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913