Cathaya Chun & Kuang

Genus

Gymnosperms > Pinales > Pinaceae

Characteristics

Trees evergreen; trunk monopodial, columnar, straight; branchlets apparently dimorphic: long branchlets with alternate rapid and slow growths that result in sets of leaves alternating with denser tufts; false short (lateral) branchlets bearing solitary leaves so densely as to appear clustered. Leaves spirally arranged, radially spreading, linear-oblanceolate, slightly curved or straight, flattened, longitudinally grooved adaxially, stomatal bands 2, abaxial, white, separated by an elevated midvein, vascular bundle 1, resin canals 2, marginal, margin entire, apex rounded. Pollen cones 1-3 from axillary buds on branchlets. Pollen 2-saccate, with visible cap on pole. Seed cones axillary, sessile, initially erect, finally pendulous, ovoid, maturing in 1st year, often persistent for many years. Seed scales suborbicular, woody, stiff, dehiscent at maturity, persistent. Bracts spatulate, apex tapering. Seeds obliquely ovoid; wing membranous. Cotyledons 3 or 4. Germination epigeal. 2n = 24*.
Life form annual
Growth form tree
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Foliage retention evergreen
Sexuality monoecy
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Environment

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Usage

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Cultivation

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Images

Cathaya unspecified picture
Cathaya unspecified picture

Distribution

Cathaya world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:31964-1
WFO ID wfo-4000007001
COL ID 3JG5
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Cathaya

Lower taxons

Cathaya argyrophylla