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Musella lasiocarpa var. rubribracteata

名称状态:被SP2000收录,状态为:Musella lasiocarpa var. rubribracteata为接受名
科属名称:Musaceae(芭蕉科)  地涌金莲属
中文名:红苞地涌金莲
形态描述:Herbs perennial, tufted; rhizomes horizontal, occasionally sprouting 1 to 4 axillary and basal tillers; pseudostems reddish green, with persistent leaf sheaths, 23^5 X 11-28 cm. Canopy leaves 121-234 cm diam.; leaves expanded proximally into a sheath; blades glabrous, narrowly elliptic, bilater ally symmetric, base subrounded or cuneate, margin entire, reddish green, apex acute or long acuminate, sometimes with spirally thin and long caudate extension, 30-115(—150) X 5-30(—40) cm, abaxial surface often waxy or glaucous, pale green, midrib distinct, light red to purple-red, adaxial surface green to dark green, veins pinnate, distinct along midrib; petiole glaucous, abaxially reddish green to purple red, 9-47 cm, channeled, margin somewhat mem branous, reddish green. Inflorescences indetermi nate, terminal, sometimes axillary near base of pseudostem, erect, conical to subglobose, dense, (12—)18—25(—30) cm; bracts (3)5 per whorl, with pistillate flower (with reduced stamens) bracts (3)4 to 7(to 11) in whorls at base and subsequently with staminate flower (with reduced gynoecium) bracts more than 6 whorls above, ovate, zygomorphic, base arciform, margin entire, apex acuminate to caudate, sometimes curving, scarious, persistent, 8.5-18 X 6 10 cm, abaxial surface glaucous, orange-red to red, adaxial surface orange-red to red, sometimes orange near base; flowers arranged in lines with each cluster of flowers subtended by a single bract on an inflorescence; pistillate flowers 3 (occasionally 2 or 4, rarely 1) per bract, tepals 2, usually tubiform, full of nectar, 1.1—1.5 X 0.4—0.8 cm; compound tepals ovate, rectangular to rectangular-orbicular, bilaterally symmetric, margin entire, 5-toothed at apex, 1.5-2.8 X 1.2-2.2 cm, yellowish to yellow, lower part greenish; free tepals ovate-oblong, bilaterally sym metric, membranous, semi-transparent, margin en tire, rugulose or wrinkled near apex, emarginated and sometimes shortly cuspidate at apex, 1.4-2.8 X 1.2 2.6 cm, yellowish to yellow, lower part greenish; ovary inferior, broadly ellipsoid or trigonous-ellip soid, densely hirsute or villous-pilose (with whitish to hyaline trichomes), greenish, 1.9-3.8 X 0.5-2.3 cm diam., locules 3, placentation axile, with 2 lines of ovules; style 1, cylinder trigonous, greenish yellow, 2.1-2.5 X 0.2-0.3 cm; stigma compressed-globose to subglobose, surface concavo-convex, whitish; re duced stamens 5, acuminate, yellow, greenish in lower portion, anther absent, ca. 1.4 X 0.2 cm diam.; staminate flowers (3)4 to 6 per bract, tepals 2, tubiform, full of nectar, 2.1-4.2 X 0.3-0.9 cm, compound tepals 2.3—4.5 X 1-2.2 cm; free tepals 2.3^.5 X 1.2-2.8 cm; androecium with 5 stamens; filaments subequal, 0.8-2.4 cm; anthers 2-locular, subrectangular, usually reflexed, connective apex emarginate, 1.4-2 X 0.1-0.3 cm, yellow to orange yellow; reduced gynoecium consisting of the ovary inferior, obovoid, glabrous or sparsely pilose, green, 0.9-1.4 X 0.4—0.6 cm, with ovule absent, style 1, filiform, 2.3-4.7 cm, stigma yellow. Fruit as berries, 3 (occasionally 2 or 4, rarely 1) per bract, (2 to)12 to 22(to 27) per inflorescence, trigonous or tetragonous ovoid or subglobose, densely hirsute, yellowish, green in upper portion, 2.7—5.1 X 2.6—4.8 cm; seeds oblate or irregular, glabrous, black-brown to black, 0.5—1.1 cm diam., 100-seed weight ca. 10 g. Pollen spheroidal, actinomorphic, simple tremoid on distal polar, exine sculpture verrucate, dotted with irregu larly ridged tips (Fig. 1J, K). Chromosome number: 2 n = 18.
国内分布:四川
                    
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