Distribution Map
Description
Decaisnina parvifolia (Dans.) Barlow, comb. nov.
Amylotheca parvfolia Dans. Bull. Jard. bot. Buitenz. 11: 248 (1931). Type.-Arfak Mts., 1400 m alt., Mayr 51, 30.v.1928 (B, lectosyntype, photo in AD); Arfak Mts., 1900 m alt., Mayr 9 (B, syntype, not seen, possibly destroyed).
Glabrous. Stems flattened and double-edged when young, often remaining angular when older. Petiole c. 1 cm long; lamina broad lanceolate to elliptical, 5-7-(10) by 2-2.5-(6) cm, shining above, dull below, gradually attenuate at the base, recurved at the margins, acute or obtuse at the apex; venation pennate with the midrib prominent below and other venation obscure. Inflorescences solitary in the axils; axis terete, bearing 6-7 pairs of triads, c. 3 cm long; peduncles of the triads 1-2 mm long; pedicels of the lateral flowers of the triads 0.5 mm long; bracts triangular, spreading, rounded at the apex, 1-1 5 mm long. Calyx narrow cylindrical, 25 mm long; limb entire or irregularly split, spreading, 0.7 mm long. Corolla in the mature bud slender, 25-30 mm long; petals in the open flower coherent in the lower 4-5 mm. Anthers 3 mm long, acuminate at the apex; free parts of the filaments equal to or longer than the anthers, sometimes flattened and wider than the anthers. Style articulate c. 0.5 mm above the base. Fruit not seen.
Occurrence. West Irian, from the Vogelkop to the Wissel Lakes (Fig. 2), from 1400 to 2400 m altitude.
Representative Specimens. WEST IRIAN Arfak Mts., path to Koebre via Tidjei, c. 2400 m alt., Sleumer and Vink 4443a, 28.i.1962 (L); south bank of L. Paniai, Wissel Lakes, 1750 m alt., Eyma 4531, Feb. 1939 (L).
See note under D. hollrungii.
Illustrations
Photographs
Specific Locality Information
Decaisnina parvifolia
updated 19 January 2007