Post by Melanie on Jan 6, 2007 15:55:22 GMT 1
2. Hibiscadelphus crucibracteatus Hobdy (end, Ex)
Trees up to 6 m tall with rounded crown, trunk ca. 16 cm in diameter. Leaf blades ovate to broadly ovate, 5-14 cm long, unlobed, upper surface essentially glabrous, lower surface sparsely stellulate pubescent and stellate-tufted in the lower vein axils, margins entire to 7-11-dentate, base openly cordate, petioles 1.5-5 cm long flowers solitary, pedicels 2-3.5 cm long; involucral bracts 4-5, green, connate slightly at base, spatulate, 20-30 mm long, 3-7 mm wide, with a prominent midrib, glabrate; calyx dark purple, curved-saccate, 4.2-4.9 cm long, irregularly 1-3-cleft, deciduous; corolla dark purple, inconspicuously veined, 5-6.5 cm long. Capsules woody, subglobose, 5-angled, beaked, ca. 2.3-2.7 cm long and in diameter, mesocarp strongly developed, reticulate, endocarp segments 10. Seeds 5-7 mm long, matted grayish white pubescent. Formerly known from a single tree, discovered in 1981 and now dead, on a windward, dry slope of Puhielelu Ridge, 750 m, Lana'i.
Seeds were harvested by Hobdy from this plant on several occasions; however, none germinated.
Among the specimens taken from the only individual is one [Hobdy 1041.5 (coll. R Connally), BISH] with the calyx and corolla in the size range of Hibiscadelphus wilderianus. Its involucral bracts, however, are filiform, ca. 1 mm wide and ca. 12 mm long, being shorter and narrower than those of H. wilderianus and within the range of H. x puakuahiwi (see H. giffardianus).
Trees up to 6 m tall with rounded crown, trunk ca. 16 cm in diameter. Leaf blades ovate to broadly ovate, 5-14 cm long, unlobed, upper surface essentially glabrous, lower surface sparsely stellulate pubescent and stellate-tufted in the lower vein axils, margins entire to 7-11-dentate, base openly cordate, petioles 1.5-5 cm long flowers solitary, pedicels 2-3.5 cm long; involucral bracts 4-5, green, connate slightly at base, spatulate, 20-30 mm long, 3-7 mm wide, with a prominent midrib, glabrate; calyx dark purple, curved-saccate, 4.2-4.9 cm long, irregularly 1-3-cleft, deciduous; corolla dark purple, inconspicuously veined, 5-6.5 cm long. Capsules woody, subglobose, 5-angled, beaked, ca. 2.3-2.7 cm long and in diameter, mesocarp strongly developed, reticulate, endocarp segments 10. Seeds 5-7 mm long, matted grayish white pubescent. Formerly known from a single tree, discovered in 1981 and now dead, on a windward, dry slope of Puhielelu Ridge, 750 m, Lana'i.
Seeds were harvested by Hobdy from this plant on several occasions; however, none germinated.
Among the specimens taken from the only individual is one [Hobdy 1041.5 (coll. R Connally), BISH] with the calyx and corolla in the size range of Hibiscadelphus wilderianus. Its involucral bracts, however, are filiform, ca. 1 mm wide and ca. 12 mm long, being shorter and narrower than those of H. wilderianus and within the range of H. x puakuahiwi (see H. giffardianus).
