学名(拉丁名) | Cyclosorus gustavii |
中文名 | 古斯塔毛蕨 |
中文科名 | 金星蕨科 |
拉丁属名 | Cyclosorus |
类型 | species |
拉丁科名 | Thelypteridaceae |
学名(拉丁名) | Cyclosorus gustavii |
中文名 | 古斯塔毛蕨 |
中文科名 | 金星蕨科 |
类型 | |
拉丁科名 | THELYPTERIDACEAE |
学名(拉丁名) | Cyclosorus gustavii |
中文名 | 古斯塔毛蕨 |
中文科名 | 金星蕨科 |
类型 | |
拉丁科名 | Thelypteridaceae |
学名(拉丁名) | Cyclosorus gustavii |
中文名 | 古斯塔毛蕨 |
拉丁属名 | Cyclosorus |
类型 | species |
拉丁科名 | Thelypteridaceae |
学名(拉丁名) | Cyclosorus gustavii |
中文名 | 古斯塔毛蕨 |
中文科名 | 金星蕨科 |
拉丁属名 | Cyclosorus |
类型 | species |
拉丁科名 | Thelypteridaceae |
中文属名 | 毛蕨属 |
植株高约50—70厘米。根状茎横走;叶远生。叶柄长约15—25厘米,基部直径约3—4毫米,深禾秆色,基部被狭披针形、暗棕色鳞片,通体被灰白色短毛。 叶片卵状披针形,长约40—50厘米,宽约20—25厘米,一回羽状,顶生羽片与侧生羽片几同形,基部3—5对羽片逐渐缩短成耳状。侧生羽片10—15对,互生,条形,长约12—15厘米,宽约1.5—2厘米,顶端渐尖,基部阔楔形或截形,有短柄,对称,边缘羽状浅裂。 裂片约20—25对,椭圆形,长约3—4毫米,宽约3—4毫米,顶端钝圆或前方有短尖头,全缘。叶轴和羽轴禾秆色,两面密被灰白色针状短毛。叶草质,干后棕绿色,上面除叶脉外近无毛,下面疏被灰白色针状短毛。每对裂片上有小脉6—9对,基部2—3对连结,小脉伸达叶边。孢子囊群圆形,生于小脉的中上部,在裂片主脉两侧各成1行。囊群盖圆肾形,棕色,无毛。
产于勐腊、瑞丽、盈江;生于热带雨林或季风常绿阔叶林林下,海拔800—1000米。也分布于印度东北部(阿萨姆)。中国(云南)分布新纪录。
Nephrodium gustavii Beddome, J. Bot. 31: 227. 1893; Christella gustavii (Beddome) Holttum.
Plants 50-100 cm tall. Rhizomes long creeping, including stipe bases with linear-lanceolate dark brown scales, similar scales on stipe bases. Fronds distant; stipes 15-25 cm, dark stramineous; laminae 40-80 × 25-35 cm, bases gradually narrowed, apices caudate with a large apical pinna; lateral pinnae 10-15 pairs, lanceolate, 12-18 × 2-3 cm, lobed ca. 1/3 toward costae, bases truncate to broadly cuneate, almost sessile, apices acuminate; apical pinnae similar to lateral ones; proximal 3-5 pairs of lateral pinnae gradually shortened, lowest pair ca. 2 cm; segments 20-30 pairs on middle pinnae, 3-4 × 3-4 mm, entire, obtuse at apices; veinlets 6-12 pairs, proximal 2 or 3 pairs anastomosing, next 1-1.5 pairs running to sinus membrane. Laminae papery, grayish green when dried, with several acicular hairs along costae and veins adaxially, with short acicular hairs along veins and minute hairs between veins abaxially. Sori orbicular, medial; indusia shortly hairy. Sporangia lacking conspicuous glands. Spores brown with long fimbriate wings.
Wet places in forests; 600-1000 m. W Yunnan [India, Thailand].
Cyclosorus gustavii has only two gatherings from W Yunnan, so our knowledge about it is quite limited. The distinction between this species and C. assamicus (Beddome) Ching, which also occurs in NE India, is not obvious. Here, we follow the treatment in Fl. Yunnan. (20: 613. 2006).