Leucadendron spissifolium subsp. oribinum I.Williams

Subspecies

Angiosperms > Proteales > Proteaceae > Leucadendron > Leucadendron spissifolium

Characteristics

Shrubs 0.5-1 m tall, with numerous stems arising from a persistent root-stock. Branches glabrous, dark brown. Branchlets thinly adpressed-pubescent. Basal shoots villous. Leaves in male plants up to 3.1 cm long, 3 mm broad, in female plants up to 4.5 cm long, 4 mm broad, in both sexes linear-oblanceolate, acute, mucronate, twisted at the base, glabrous. Involucral leaves in male plants neither much crowded nor concealing the head, similar to the stem, leaves but thinly pubescent towards the base; in female plants numerous, crowded and spreading, narrowing to an acute apex and pale green to ivory in colour. Male inflorescence 9 mm diam., globose, solitary' at the ends of short slender branchlets, fairly numerous, giving off a faint smell of honey and yeast. Basal bracts 5 mm long, 2 mm broad, 7 in number, lanceolate, acute, dark brown, ciliate, glabrous except for a few hairs near the apex. Floral bract 1.5 mm long, 0.8 mm broad, ovate, pubescent and ciliate above, surrounded by a few long hairs at the base. Floral bud 4.5-5 mm long, pubescent, apex yellow swollen and subquadrangular. Perianth tube 1.8 mm long, sparsely pubescent. Claw 1.8 mm long, slender, recurved 90° and over, sparsely pubescent. Limb 1.5 mm long, concave, hooked, glabrescent. Anther 1 mm long, somewhat curled upwards. Pollen a straight sided triangle in polar view with sides 2-7 µ, polar depth 20 µ. Stigma 1 mm long, clavate, entire, acting as a pollen presenter. Style 3.6-4 mm long, filiform, glabrous, narrower above. Flypogynous scales 1.5-1.7 mm long, acicular, yellow. Nectar seen at the apices of the scales. Female inflorescence 8 mm diam., globose, solitary, terminal, with the florets arranged in 8 spiral rows with about 20 cm each. Basal bracts very variable in length, the innermost 8 mm long, 3 mm broad, narrowly deltoid, acute, ciliate, sparsely pubescent. Floral bract 2-3 mm long, 4-4.5 mm broad, broadly elliptic, ciliate, short-pubescent. Floral bud 4 mm long, transversely compressed, laterally sparsely pubescent, apex yellow and not swollen. Perianth segments loosely imbricated forming a tube 3 mm long, laterals sparsely pubescent. Claw 1 mm long, recurved 90-180°, glabrous or pubescent. Limb 0.8 mm long, glabrous. Staminode 0.5 mm long, decumbent. Ovary 1 mm long, ovoid, glabrous. Style 3 mm long, glabrous, narrower below. Stigma 0.5 mm broad, oblique. Hypogynous scales 1.3-2 mm long, tapered, yellow. Receptacle 7 mm long, 2 mm diam., clavate. Mature female head indehiscent, 3.2 cm long, 2.2 cm diam., ellipsoid, glabrous when old, with bracts pubescent across the middle. Fruit 6.5 mm long, 6 mm broad, samaroid, dark brown, glabrous, slightly pitted.
Life form perennial
Growth form shrub
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Foliage retention evergreen
Sexuality dioecy
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Mature height (meter) 0.5 - 1.0
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Usage

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Cultivation

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Images

Leucadendron spissifolium subsp. oribinum unspecified picture
Leucadendron spissifolium subsp. oribinum unspecified picture

Distribution

Leucadendron spissifolium subsp. oribinum world distribution map, present in South Africa

Conservation status

Leucadendron spissifolium subsp. oribinum threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:888744-1
WFO ID wfo-0001364767
COL ID 7JY9L
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Leucadendron spissifolium subsp. oribinum