| 学名(拉丁名) | Prosaptia obliquata |
| 中文名 | 琼崖穴子蕨 |
| 命名人 | (Bl.) Mett. |
| 中文科名 | 禾叶蕨科 |
| 拉丁属名 | Prosaptia |
| 类型 | species |
| 拉丁科名 | Grammitidaceae |
| 中文属名 | 穴子蕨属 |
| 学名(拉丁名) | Prosaptia obliquata |
| 命名人 | (Bl.) Mett. (accepted name) |
| 拉丁属名 | Prosaptia |
| 类型 | species |
| 拉丁科名 | Polypodiaceae |
| 学名(拉丁名) | Prosaptia obliquata |
| 中文名 | 密毛穴子蕨 |
| 拉丁属名 | Prosaptia |
| 类型 | species |
| 拉丁科名 | Polypodiaceae |
| 学名(拉丁名) | Prosaptia obliquata |
| 中文名 | 琼崖穴子蕨 |
| 中文科名 | 禾叶蕨科 |
| 拉丁属名 | Prosaptia |
| 类型 | species |
| 拉丁科名 | Grammitidaceae |
| 中文属名 | 穴子蕨属 |
| 学名(拉丁名) | Prosaptia obliquata |
| 发表年份 | 1870(年) |
| 拉丁属名 | Prosaptia |
| 类型 | species |
| 拉丁科名 | Polypodiaceae |
| 学名 | 状态 | 来源 | 命名人 | |
|---|---|---|---|---|
| Prosaptia obliquata | 异名 | The Plant List | (Blume) Mett. | Grammitis obliquata |
| Prosaptia obliquata | 接受名 | 中国植物志 | ||
| Prosaptia obliquata | 接受名 | Flora of China | ||
| Prosaptia obliquata | 接受名 | Species 2000 |
Polypodium obliquatum Blume, Enum. Pl. Javae 2: 128. 1828; Cryptosorus obliquatus (Blume) J. Smith; Ctenopteris obliquata (Blume) Copeland; Grammitis obliquata (Blume) Hasskarl.
Stipe 0.6-5 cm, with hairs frequent to dense, short, simple and 1-forked, solitary, dark reddish brown, up to 0.4 mm. Lamina elliptic or narrowly elliptic, 10-30 × 2-4 cm, pinnate or deeply pinnately divided to narrow wing less than 0.5 mm wide along rachis, acuminate at apex, gradually shortened downward to form small deltoid or semicircular pinnae; middle pinnae largest, linear to linear-lanceolate, 10-27 × 1.8-2.7 mm, dilated at base, entire or slightly undulate, acute or obtuse at apex; rachis terete at least at base, distinctly prominent on both surfaces of lamina; costa of pinna ± prominent on both surfaces; veins hidden, simple; hairs simple, seldom tufted, sometimes 1-3-forked, dark reddish brown, up to 0.4 mm, sparse to dense on abaxial side of rachis, dense on adaxial side, occasional to scattered on margin, occasional to sparse on both sides of costae and lamina. Sori sunken in elliptic, oblique cavities on abaxial surface of lamina, prominent on adaxial surface, in a medial row on each side of costa, less than 8 pairs on 1 pinna, rim of cavity distinctly and evenly prominent, not fringed with hairs.
Epiphytic on tree trunks in dense wet forests, also on moss-covered rocks; 200-1800 m. Hainan, Taiwan [Borneo, S India, Indonesia, Malaysia, New Guinea, Philippines, Sri Lanka, Thailand, Vietnam].
2.琼崖穴子蕨（海南植物志）
Prosaptia obliquata (Blume) Mett. in Novara Reise Bot. 1: 214. 1870; Tagawa in Acta Phytotax. Geobot. 9: 210. 1940: Ching in Bull. Fan Mem. Inst. Biol. Bot. Ser. 10: 17. 1940: Tardieu et C. Chr. Fl. Indo-Chine 7 (2): 529. 1941; Ching et al. in W. Y. Chun et al., Fl. Hainan. 1: 198. 1964; Tagawa et K. Iwats., Fl. Thailand 3 (4): 592. 1989. ——Polypodium obliquatum Blume, Enum. Pl. Jav. 128. 1828; Fl. Jav. Fil. 181, t. 85B. 1829. ——Cryptosorus obliquata (Blume) J. Sm., Hist. Fil. 87. 1875.——Ctenopteris obliquata (Blume) Copel. in Philipp. J. Sci. 81: 111. 1953; Holttum, Rev. Fl. Mal. 2: 221, f. 129. 1954: De Vol in Fl. Taiwan 1: 220. 1975; Shieh et al., Fl. Taiwan 2nd ed. 1: 525. 1994.
根状茎短，近直立或横卧，鳞片暗棕色，边缘密被短毛，狭披针形。叶簇生，叶柄2-3厘米长；叶片深羽裂，15-30厘米长，宽2-5厘米，向两端下延；裂片基部最宽，贴生，顶端尖头，下部裂片缩短呈小裂片，边缘全缘；叶脉通常隐藏，侧脉几不可见，光滑无毛；叶柄和中肋被黑色短毛。孢子囊群线形，斜向上，深陷于叶肉中，穴的边缘隆起，幼时开口几接合，成熟后则张开呈椭圆形，在叶的上面稍隆起。
产台湾、海南。生密林中树干上。斯里兰卡、印度南部、越南、菲律宾、印度尼西亚。模式产地爪哇。
标本份数
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