30
Dec
2008
Actinotus periculosus (Apiaceae), new perennial species in Australia
New Species | Magnoliopsida

Actinotus includes 17 species. In Australia, the genus is represented by a single endemic species nova-zelandiae A. Petrie, in New Zealand.

Actinotus periculosus Henwood, sp. November.

Andromonoica herb, erect, perennial, 20-50 cm high. Stem branched, covered with dense white hairs. Caulinare leaves, discolore, alternate, petiolate. Petiole 15-54 mm long. Lamina 20-100 mm long, 15-70 mm wide, thin section, folio elliptic to linear, 30-65 mm long and 1.6 mm wide, apical acute or obtuse. Umbela the capital, 15-30 mm in diameter. Peduncle 30-90 mm long. Involucre composed of 9.12 bractei, arranged in a single row, 25-55 mm long, 5-16 mm wide, lamina hairy, white with green nervatiune. Sepa petaloide, ovata, 1-1.5 mm long, 0,5-0,75 mm wide, white to cream base truncata, acute apical, Vilos. Filamentous petals, 0,8-0,9 mm long, glabra. 5 stamens, filament length 1,7-2,5 mm, 0,4-0,5 mm long Antera. Ovary unilocular, Vilos.

Source www3.interscience.wiley.com

See also
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Magnoliopsida
Tithonia rotundifolia

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Shrub 1-2 m tall, thin stalk, reddish brown, slightly pubescent, terminal buds in bouquets, bark red-brown to gray-brown, thin, becomes scaly. Leaves alternate, decidue, nervatiune pinnate, obovata-elliptic, 3-6 cm long, dark green on upper and pale green inside, margins entire or soirees.

 
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