Osyris L.

Rouvet (fr)

Genus

Angiosperms > Santalales > Santalaceae

Characteristics

Shrubs or small trees evergreen. Branches usually 3-ridged or-angled. Leaves alternate, ± sessile, elliptic-lanceolate or elliptic-obovate, usually ± leathery, pinnately veined, lateral veins inconspicuous. Inflorescences axillary; male ones cymose; bisexual and female ones often 1-flowered; bracts and bracteoles on male inflorescences caducous. Flowers unisexual (when plants dioecious) or bisexual. Bisexual flowers: perianth tube mostly connate to ovary, lobes 3(or 4), triangular or ovate, with a tuft of hair adaxially. Stamens 3(or 4), short, on the base of lobes; anthers ovoid, cells distinct, parallel, dehiscence longitudinal. Disk nearly flat, sinuate at margin. Ovary inferior, 1-loculed; ovules 2-4. Style needle-shaped; stigmas 3(or 4)-parted. Male flowers: stamens slightly longer than bisexual flowers; ovary rudimentary. Female flowers: bracteoles more prominent; perianth tube shorter. Fruit a drupe, relatively small (to 1 cm), usually with rudimentary perianth at apex or with only rudimentary disk, exocarp fleshy, endocarp crustaceous. Seeds globose.
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Shrubs or small evergreen trees; branchlets ribbed by raised vascular strands running out into midribs of leaves, ultimate twiglets flattened. Leaves petiolate, opposite or alternate, penninerved, coriaceous, both surfaces minutely and closely white-dotted. Flowers hermaphrodite and male (plants androdioecious), axillary and terminal, either solitary or in 2–3-flowered dichasia or umbellate clusters, sometimes panicled; bracts and bracteoles very small, free from peduncle, soon deciduous. Perianth tube very short; lobes usually 3 or 4, valvate. Stamens normally 3 or 4, inserted at base of perianth lobes; anthers attached to lobes by tuft of hairs. Disk fleshy, lobed, lining inside of perianth tube. Ovary with 3–4 ovules pendent from apex of erect free-central placenta; stigma 3–4-lobed. Fruit indehiscent, ovoid, epicarp fleshy.
Flowers hermaphrodite and male (plants androdioecious), axillary and terminal, either solitary or in 2–3-flowered dichasia or umbellate clusters, sometimes panicled.
Shrubs or small trees; branchlets ribbed by raised vascular strands running out into midribs of leaves, ultimate twiglets flattened.
Leaves petiolate, opposite or alternate, penninerved, coriaceous, both surfaces minutely and closely white-dotted.
Stamens normally 3 or 4, inserted at base of lobes; anthers attached to lobes by tuft of hairs.
Ovary with 3–4 ovules pendant from apex of erect free-central placenta; stigma 3-or 4-lobed.
Bracts and bracteoles very small, free from peduncle, soon deciduous.
Perianth tube very short; lobes usually 3 or 4, valvate.
Disk fleshy, lobed, lining inside of perianth tube.
Fruit indehiscent, ovoid, epicarp fleshy.
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Growth form shrub
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Foliage retention evergreen
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Cultivation

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Images

Osyris unspecified picture

Distribution

Osyris world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:36227-1
WFO ID wfo-4000027430
COL ID 63GS3
BDTFX ID 86914
INPN ID 195588
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Osyris Colpoon Fusanus

Lower taxons

Osyris compressa Osyris speciosa Osyris daruma Osyris lanceolata Osyris alba