. Une flore illustrée du nord des États-Unis, le Canada et les possessions britanniques, de Terre-Neuve jusqu'au parallèle de la limite sud de la Virginie et de l'océan Atlantique à l'ouest jusqu'à la 102d méridien. La botanique, la botanique.  ! M , ARACEAE. Tome I. i. Peltandra virginica (L.) Kunth. Flèche verte-arum. Fig. 1115. Arum virginicum L. sp. PI. 966. 1753. Peltandra undulata Raf. Journ. Phys. 89 : 103. 1819. Peltandra virginica Kunth, Enum. 3 : 43. 1841. Feuilles vert clair, un peu hastate-gcsce- tate, 4-30 pieds de long, 3'-8' de large, aigu ou acuminé au sommet, de l'entreprise, fortement veinées. Un tu racine

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. 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. ! M , ARACEAE. Vol. I. i. Peltandra virginica (L.) Kunth. Green Arrow-arum. Fig. 1115. Arum virginicum L. Sp. PI. 966. 1753. Peltandra undulata Raf. Journ. Phys. 89 : 103. 1819. Peltandra virginica Kunth, Enum. 3: 43. 1841. Leaves bright green, somewhat hastate-sagit- tate, 4-30' long, 3'-8' wide, acute or acuminate at the apex, firm, strongly veined. Root a tuft of thick fibers; scape nearly as long as the leaves, recurving and immersing the fruiting spadix at â maturity; spathe green, 4'-8' long, long-conic, closely investing the spadix throughout, the strongly involute margins undulate; spadix shorter than the spathe, the pistillate flowers covering about one-fourth of its length, the rest occupied by staminate flowers; ovaries globose- ovoid; style nearly i" long; stigmas a little thicker than the style; berries green when ripe. In swamps or shallow water, Maine to Ontario, Michigan, Florida, Louisiana and Missouri. Poison- arum. Virginia wake-robin. May-June. Peltandra sagittaefolia (Michx.) Morong, admitted into our first edition, differs from P. vir- ginica in a dilated spathe with a whitish summit; it is not definitely known north of North Carolina. 3. CALLA L. Sp. PI. 968. 1753. A bog herb with slender acrid rootstocks, broadly ovate or nearly orbicular cordate â¢leaves, and a large white persistent spathe. Spathe ovate-lanceolate or elliptic, acuminate, open. Spadix cylindric, much shorter than the spathe, densely covered with flowers. Flowers perfect or the very uppermost staminate; perianth none. Stamens about 6; fila- ments linear, longer than the anthers; anther-sacs divaricate, opening by slits. Ovary ovoid, i-celled; style very short; stigma small, flat, circular. Ovules 6-9, anatropous. Berries obconic, depre

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