Cinnadenia Kosterm.
Creators
Description
Genus Cinnadenia Kosterm.
Adansonia, sér. 2, 13: 223 (1973); Grierson & Long, Flora of Bhutan 1 (2): 39 (1984); Kochummen, Tree Flora of Malesia 4: 123 (1989); Rohwer, Families and Genera of Vascular Plants 2: 389 (1993); Van der Werff, Blumea 46: 135 (2001).
— Type species: Dodecadenia paniculata Hook.f. (1886) (synonym of Cinnadenia paniculata (Hook.f.) Kosterm.)
Litsea section Octolitsea, H.Liu, Bulletin de la Société botanique de France 80: 568 (1933).
— Type species: Litsea liyuyingii H.Liu (synonym of Cinnadenia liyuyingii (H.Liu) de Kok & Sengun, comb. nov.).
DISTRIBUTION. — Three species, one in North India and Bhutan, one in South China and North Vietnam and one in Peninsular Malaysia (see Fig. 1).
DESCRIPTION
Trees 3-30 m tall. Terminal leaf buds not perulate. Leaves alternate, venation pinnate, domatia absent. Inflorescence umbellate or a panicle or with 3 or 4-5 terminal flowers, axillary, rarely terminal, involucral bracts absent or present. Flowers unisexual, dimerous or trimerous; perianth lobes 4 or 6, equal, persistent, partly truncate or deciduous in fruit; tube short, funnel-shaped, enlarged and indurate in fruit. Male flowers, stamens 8-12, 18-26 or 32, 3 rd row with a pair of stalked or sessile glands on the filaments; anthers 4-celled, all introrse. Female flowers, ovary sessile, at the bottom of
perianth tube; style slender; stigma discoid or obscurely 3-lobed. Fruit a drupe, seated on a cup-shaped perianth tube (cupule), margin entire.
KEY TO THE SPECIES OF CINNADENIA KOSTERM.1. Leaves lanceolate; apex acuminate; upper surface smooth (hand lens), secondary venation hardly visible. Inflorescence with an apical whorl of 2-3 flowers; flowers with 4 perianth lobes.............. 2. C. malayana Kosterm.
— Leaves elliptic to lanceolate, sub-obovate or narrowly ovate; apex acute to indistinctly acuminate to obtuse; upper surface pitted (hand lens), secondary venation clearly visible. Inflorescence with apical whorl of 4-5 flowers or umbellate; flowers with 6 perianth lobes................................................................................................. 2
2. Twigs sparsely hairy to glabrous when young; terminal leaf bud 6.4-7.4 mm long, apex acuminate, glabrous to velutinous; flowers with 26 or 32 stamens.................. 1. C. liyuyingii (H.Liu) de Kok & Sengun, comb. nov.
— Twigs velutinous when young, glabrescent; terminal leaf bud 2.3-2.5 mm long, apex acute to indistinctly acuminate, velutinous; flowers with 9-12 stamens............................................ 3. C. paniculata (Hook. f.) Kosterm.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Lauraceae
- Genus
- Cinnadenia
- Kingdom
- Plantae
- Order
- Laurales
- Phylum
- Tracheophyta
- Scientific name authorship
- Kosterm.
- Taxon rank
- genus
References
- KOSTERMANS A. J. G. H. 1973 - Cinnadenia Kosterm. Genus Novum Lauracearum. Adansonia, ser. 2, 13: 223 - 227.
- GRIERSON A. J. C. & LONG D. G. 1984 - Flora of Bhutan. Vol. 1, Part 2. Royal Botanical Garden, Edinburgh, 274 p.
- KOCHUMMEN K. M. 1989 - Lauraceae, in NG F. P. S. (ed.), Tree Flora of Malaya. Vol. 4. Longman, Kuala Lumpur: 98 - 178.
- Rohwer J. G. 1993 - Lauraceae, in KUBITZKI K., ROHWER J. G. & BITTRICH V. (eds), The Families and Genera of Vascular Plants. Vol. II. Springer-Verlag, Berlin: 366 - 391.
- VAN DER WERFF H. 2001 - An annotated key to the genera of Lauraceae in the Flora Malesiana Region. Blumea 46: 125 - 140.
- LIOU HO M. 1933. - Un sous-genre nouveau et une espece nouvelle de Litsea au Yunnan. Bulletin de la Societe botanique de France 80 (4): 566 - 568. https: // doi. org / 10.1080 / 00378941.1933.10833884