学名(拉丁名) | Piper kawakamii |
中文名 | 恒春胡椒 |
命名人 | Hayata. |
中文科名 | 胡椒科 |
拉丁属名 | Piper |
类型 | species |
拉丁科名 | Piperaceae |
中文属名 | 胡椒属 |
学名(拉丁名) | Piper kawakamii |
命名人 | Hayata (accepted name) |
拉丁属名 | Piper |
类型 | species |
拉丁科名 | Piperaceae |
学名(拉丁名) | Piper kawakamii |
命名人 | Hayata |
发表年份 | 1911(年) |
拉丁属名 | Piper |
类型 | species |
拉丁科名 | Piperaceae |
学名(拉丁名) | Piper kawakamii |
中文名 | 恒春胡椒 |
拉丁属名 | Piper |
类型 | species |
拉丁科名 | Piperaceae |
学名(拉丁名) | Piper kawakamii |
中文名 | 恒春胡椒 |
中文科名 | 胡椒科 |
拉丁属名 | Piper |
类型 | species |
拉丁科名 | Piperaceae |
中文属名 | 胡椒属 |
学名(拉丁名) | Piper kawakamii |
发表年份 | 1911(年) |
拉丁属名 | Piper |
类型 | species |
拉丁科名 | Piperaceae |
Climbers glabrous except for rachis, dioecious. Stems black when dry, rooting at nodes, deeply furrowed and thickly ridged. Petiole 4-10(-15) mm; prophyll ca. 1/2 as long as petiole; leaf blade ovate, in apical leaves elliptic, 8-13(-18) × 3.5-8.5 cm, thinly papery, abaxially densely glandular, base rounded or shallowly cordate, in apical leaves sometimes shortly tapered, usually symmetric, apex acute to shortly acuminate; veins 7, outermost pair very slender, apical pair arising 1-2 cm above base, alternate, reaching middle of leaf, others basal; reticulate veins conspicuous. Spikes leaf-opposed. Male spikes ascending, 3.5-5 cm × ca. 4 mm; peduncle ca. 1.5 cm; bracts orbicular or obovate, 1.1-1.5 mm wide, peltate, adaxially villous, margin not entire, stalk villous. Stamens 2; filaments short. Female spikes 2-3.5 cm; peduncle, rachis, and bracts as in male spikes. Ovary ovoid, distinct; stigmas 4, linear, reflexed. Drupe not seen. Fl. May-Jul.
Forests, on trees or rocks; near sea level to 800 m. S Taiwan [N Philippines]
47.恒春胡椒(新拟)恒春风藤(台湾)
Piper kawakamii Hayata in Coll. Sci. Tokyo 30 (1) : 234. 1911; H. L. Li, Woody Fl. Taiwan 67. 1963.——Piper subcordata Hayata, Gen. Ind. Fl. Form. 61. 1917. nom. nud.
攀援藤本,除花序轴和苞片腹面外,余均无毛;枝干时变黑色,有深沟槽和粗纵棱,节上生根。叶薄纸质,背面有密腺点,卵形、长卵形或枝端的为椭圆形,长9-13厘米,宽4-8厘米,顶端短尖至短渐尖,基部钝圆或浅心形,有时枝端的叶基部短狭,两侧通常相等;叶脉7条,最上1对互生,离基1-2厘米从中脉发出,上升至叶片中部稍上方即弯拱网结,余者均自基部发出,最外1对很细弱,但明显,网脉显著;叶柄长1-1.5厘米;叶鞘长为叶柄之半。花单性,雌雄异株,聚集成与叶对生的穗状花序。雄花序长约3.5厘米,直径约4毫米,总花梗长约1.5厘米;花序轴被毛;苞片近圆形或倒卵状圆形,边缘不整齐,具柄,盾状,直径1.1-1.5毫米,腹面和柄上被长柔毛,雄蕊2枚,花丝短。雌花序长2-3.5厘米,总花梗、花序轴和苞片与雄花序的相同;子房卵形,离生,柱头4,线形,外反。果未见。花期5-7月。
产于我国台湾南部(台南关子岭、恒春)。生于林中,攀援于树上或石上。模式标本采自我国台湾恒春。