Ecology of Indonesian Papua Part One by Andrew J. Marshall & Bruce M. Beehler

Author:Andrew J. Marshall & Bruce M. Beehler [Marshall, Andrew J. & Beehler, Bruce M.]
Language: eng
Format: epub
Tags: nature, ecology, Travel, Asia, Southeast, Special Interest, Ecotourism, Ecosystems & Habitats, Forests & Rainforests, Regional
ISBN: 9781462906796
Google: LQTQAgAAQBAJ
Publisher: Tuttle
Published: 2011-07-19T20:29:34+00:00

Features of Subfamilies Rauvolfioideae and Apocynoideae

Habit trees, shrubs or climbers, rarely herbs; buttresses and/or pneumatophores sometimes present; latex present, this usually white, less commonly cream-colored, yellowish, or bluish-white. Indumentum of simple hairs. Leaves simple, opposite or, more rarely, verticillate or spirally arranged, pinnately veined, margin entire, very rarely crenulate (Dyera in western Malesia) or toothed (Alyxia ilicifolia from Australia). Inflorescences cymose, rarely fasciculate or flowers solitary, terminal or axillary often forming panicles. Flowers bisexual, 5-merous, rarely 4-merous (in Leuconotis from western Malesia), radially symmetrical or, very rarely, slightly bilaterally symmetrical (in Allamanda from South America); calyx mostly of five more or less free lobes, sometimes fused into a tube with shortened lobes (in Voacanga, Chonemorpha), sometimes with glands at the base inside; corolla consisting of a short or long tube and erect or spreading lobes, funnel-shaped, salver-shaped, platter-shaped, trumpet-shaped, urn-shaped or rotate, lobes overlapping to the left or right, more rarely valvate; stamens inserted on the inside of the corolla tube, completely included or exserted from corolla tube throat, anthers dorsifixed, sagittate or ovate, free or adnate to the pistil head, dehiscing by longitudinal slits, sometimes with the base and apex sterile; disk present or absent, if present then of two or five lobes or an annular ring, crenate or not; ovary superior or, rarely, semi-inferior, of two separate carpels united into a common style, a single bilocular ovary or a unilocular ovary; pistil head with a stigmatic base and a 2-cleft apex. Fruit a drupe, berry, capsule or follicle, solitary if from a syncarpous ovary or paired if from an apocarpous ovary, sometimes secondarily fused appearing syncarpous (in Parsonsia, Wrightia). Seeds simple, arillate, winged, with a ciliate margin or with an apical and/or basal coma.

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