Ceropegia anantii
| Ceropegia anantii | ||||||||||||
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Ceropegia anantii SRYadav, Sardesai & SPGaikwad |
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| Scientific name | ||||||||||||
| Ceropegia anantii | ||||||||||||
| SRYadav , Sardesai & SPGaikwad |
Ceropegia anantii is a species of plant from the subfamily of the asclepiadoideae (Asclepiadoideae).
features
Vegetative characteristics
Ceropegia anantii is a perennial herbaceous plant that grows upright. It has a bulbous rhizome. The somewhat flattened tubers are two to three centimeters in diameter and the roots are fibrous. The shoots are usually unbranched and round in cross-section; they reach heights of 15 to 40 cm and are one to two millimeters thick. They are only sparsely hairy. The finely fluffy hairy leaves are arranged opposite each other and are almost sessile. The leaf blade is linear, 4 to 8 cm long and 0.3 to 0.5 cm wide. They taper to a point and gradually narrow towards the base. The surface is scaly, the underside bare, apart from the midrib and the edges, which are finely hairy.
Inflorescence and flowers
The hermaphrodite flowers are zygomorphic and five-fold with a double flower envelope. The solitary flowers arise from the leaf axils, but can also be formed outside the leaf axils. The flower stalks are 4 to 6 mm long with a diameter of 0.6 to 0.8 mm; they are downy hairy. The solitary bracts start a little above the center of the flower stalks. They are straight and pointed. They measure 2.3 to 2.6 mm in length and 0.3 to 0.4 mm in length. The downy, hairy sepals are 5 to 7 mm long and 0.7 to 0.8 mm wide, they are linear and almost pointed. The greenish-yellow corolla is 4 to 6.5 cm long and not curved. The tube is 1 to 2.5 cm long and narrows quite abruptly above the crown bowl. The actual tube is only slightly longer to twice as long as the crown bowl. The corolla is bare and greenish on the outside with purple lines. The petals are 1.3 to 3.5 cm long. They are fused together at the tips, the tips can also be slightly twisted. They are greenish-white and finely hairy on the inside. Each corner has a black spot on the inside and outside of the base. The tips are more or less brownish in color. The secondary crown is dome-shaped with five deeply slit lobes, which are densely covered with ciliate hairs at the base. The staminale (or inner) secondary crown has five linear upright, 4 to 5 mm long lobes, which lean towards each other at the ends. The pollinarium measures 0.3 to 0.35 × 0.2 to 0.25 mm. The two pollen masses (pollinia) are yellowish and connected to the brownish pollen carriers (corpuscula) by short arms (caudiculae).
Fruits and seeds
The straight, slender, spindle-shaped and upright follicles are single or in pairs. They are 6 to 7 mm long with a diameter of 0.2 to 0.25 cm. The egg-shaped seeds measure 4 × 1.5 mm. The silky head of hair (coma) is white and 1 to 1.5 cm long.
Similar Art
Ceropegia anantii is closely related to Ceropegia attenuata , but differs in the following features:
- grows on plateaus at higher altitudes, whereas Ceropegia attenuata grows in coastal plains at low altitudes on plateaus with a lateral subsurface
- the leaves are narrow-linear, in Ceropegia attenuata linear to lanceolate.
- the cauldron of the flower narrows abruptly towards the flower tube. In Ceropegia attenuata the transition is more gradual
- the flower has a brown border in the upper part, which is missing in Ceropegia attenuata .
- distinctive are a dark spot at the base of the petal lobes, which is missing in Ceropegia attenuata
- the tips of the petals are not as strongly curved outwards as in Ceropegia attenuata . Here the corolla lobes form a cage-like structure.
Geographical distribution and ecology
Ceropegia anantii is restricted to the flat peaks of the Salva Hills in the Sindhudurg district of the Indian state of Maharashtra . The flowers appeared there from August, fruits can be found until November.
Taxonomy
The species was first described in 2004 by Shrirang Ramchandra Yadav, Milind Madhav Sardesai and Sayajirao P. Gaikwad. In September 1998 the authors were able to locate around 300 plants. The holotype Yadav-495A is kept in the CAL (Central National Herbarium, Calcutta, West Bengal). The isotype Yadav-495B has been deposited in the herbarium of the Royal Botanic Gardens Kew. The isotype Yadav-495C is kept in the herbarium of the Botanical Survey of India (BSI), the isotype Yadav-495D in the Blatter Herbarium (Mumbai) and the isotype Yadav-495E in the herbarium of Shivaji University (SUK).
The species is named after Prof. Anant R. Kulkami (Mumbai), who made many contributions to botany, but especially to the systematics of angiosperms.
literature
- Shrirang Ramchandra Yadav, Milind Madhav Sardesai & Sayajirao P. Gaikwad: Ceropegia anantii (Asclepiadaceae), a new species from Western Ghats, India. Journal of the Bombay Natural History Society, 101 (1): 141-143, 2004 online at Biodiversity Heritage Library