. Bergen's botany : key and flora : Northern and Central States Plants; Plants. 212 FOUNDATIONS OF BOTANY the apex, rounded at the base into a long, concave petiole, entire or toothed, sniootli or slightly downy. Scape taller than the leaves, downy, spike densely flowered; bracts short, ovate. Flowers per- fect. Stamens 4, projecting. Capsule ovoid, about twice the length of the calyx. Common in dooryards.* 2. P. lanceolata, L. Kihgkass. Biennial or perennial; soft- hairy or nearly smooth. Leaves numerous, lanceolate to elliptical, acute, long-petioled, strongly 3-5-ribbed, entire or toot
. Bergen's botany : key and flora : Northern and Central States Plants; Plants. 212 FOUNDATIONS OF BOTANY the apex, rounded at the base into a long, concave petiole, entire or toothed, sniootli or slightly downy. Scape taller than the leaves, downy, spike densely flowered; bracts short, ovate. Flowers per- fect. Stamens 4, projecting. Capsule ovoid, about twice the length of the calyx. Common in dooryards.* 2. P. lanceolata, L. Kihgkass. Biennial or perennial; soft- hairy or nearly smooth. Leaves numerous, lanceolate to elliptical, acute, long-petioled, strongly 3-5-ribbed, entire or toothed. Scapes much longer than the leaves, stiiate-angled, 1-2 ft. high, spike short and dense. Bracts and sepals ovate. Corolla smooth. Cap- sule longer than the calyx, 2-8eeded. Introduced; common in meadows.* 3. P. aristata, Michx. Large-bracted Plan- tain. Annual. Leaves broadly linear, entire or sparingly and finely toothed, narrowed below into a margined petiole, smooth or silky-downy. Scape longer than the leaves, 6-10 in. high, spike dense. Bracts linear, ^-1 in. long. Stamens 4 ; capsule 2-seeded, longer than the cah-x. Common on dry soil.* 4. P. heterophylla, Nutt. Many- seeded Plantain. Annual. Leaves linear, fleshy, entire, or with a few spreading teeth, smooth or slightly downy. Scapes slender, 3-6 in. high, spike very slender, many- flowered, the lower flowers often scattered. Bracts ovate, longer than the sepals. Stamens 2. Capsule twice the length of the calyx, many-seeded. Common in cultivated ground, especially S.*. Fig. 21. —Flowers of Plantain (Planiago), enlarged. A, earlier stage, pistil mature, sta- mens not yet appearing outside the corolla. B, later stage, pistil withered, stamens mature. 95. RUBIACE^. Madder Family. Herbs, shrubs, or trees. Leaves opposite and entire, with stipules between them, or appearing whorled since the stipules resemble the leaves. Flowers always perfect, frequently dimorphous (as in Houstonia, Mitchella, and Bouvardia). Calyx-t
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1901
