Sageretia

Brongniart

Mém. Fam. Rhamnées, 52, plate 2, fig. 2. 1826.

Common names: Mock buckthorn
Etymology: For Augustin Sageret, 1763–1851, French botanist
Treatment appears in FNA Volume 12. Treatment on page 64. Mentioned on page 44, 45, 62.
 TaxonIllustrator 
FNA12 P08 Sageretia minutiflora.jpegReynosia septentrionalis
Sageretia minutiflora
Krugiodendron ferreum
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Shrubs or woody vines [trees], arching, sprawling, drooping, or clambering [erect], tendrils absent, armed with thorns (sometimes not prominent); bud-scales present. Stems not twining, hairy. Leaves persistent or tardily deciduous, present at flowering, usually opposite to subopposite, sometimes alternate distally; blade not gland-dotted; pinnately veined, secondary-veins not strongly parallel [± parallel], tertiary-veins reticulate. Inflorescences terminal and axillary, overtopping or extending beyond foliage, spikelike or spicate, paniclelike thyrses, [5–] 30–120 [–150] -flowered; peduncles and pedicels not fleshy in fruit. Pedicels usually absent, rarely present. Flowers bisexual; hypanthium shallowly cupulate to hemispheric, 1–2 mm wide; sepals 5, erect, yellowish green, triangular, ± fleshy, keeled adaxially; petals 5, white to yellow, hooded, spatulate, short-clawed; nectary fleshy, cupulate, distally free from hypanthium; stamens 5; ovary superior, 2–3-locular; style 1. Fruits drupes; stones (2–) 3, tardily dehiscent.

Distribution

North America, Mexico, se Asia

Discussion

Species 30–35 (3 in the flora).

Most species of Sageretia are from southeast Asia, with 15 endemic to China (Chen Y. L. and C. Schirarend 2007). Four are native to the Americas (G. L. Nesom 1993h).

Selected References

None.

Key

1 Shrubs, densely and intricately branched; branches erect or spreading to arching or arcuate-decumbent, densely short-strigillose; leaf blades 0.5–2(–3) × 0.5–1(–2) cm, veins not prominently raised abaxially; inflorescence primary axes 0.5–1 cm, lateral branches 0(–2). Sageretia wrightii
1 Shrubs or vines, loosely to compactly branched; branches often becoming sprawling, trailing, or climbing, tomentose or villous-tomentose, sometimes with understory of minute, erect, glandular hairs; leaf blades 1–4.5(–6) × 0.5–2.5 cm, veins prominently raised abaxially; inflorescence primary axes 2–15 cm, lateral branches 4–8. > 2
2 Leaf blade apices acute to acuminate; inflorescence primary axes 5–15 cm. Sageretia minutiflora
2 Leaf blade apices acute to obtuse or rounded; inflorescence primary axes 2–5 cm. Sageretia thea
... more about "Sageretia"
perigynous +  and epigynous +
Guy L. Nesom +
Brongniart +
not gland-dotted +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
Mock buckthorn +
North America +, Mexico +  and se Asia +
For Augustin Sageret, 1763–1851, French botanist +
free +  and adnate +
shallowly cupulate +  and hemispheric +
unisexual +  and bisexual +
alternate +, opposite +  and subopposite +
deciduous +  and persistent +
intrastaminal +
not fleshy +
perigynous +  and epigynous +
white +  and yellow +
adnate +  and distinct +
short-clawed +  and spatulate +
2-4-carpellate +
Mém. Fam. Rhamnées, +
yellowish green +
distinct +
keeled;triangular +
not twining +
Sageretia +
Rhamnaceae +
[5-]30-120[-150]-flowered +
paniclelike +
deciduous +  and evergreen +
vine +  and shrub +
clambering +, drooping +, sprawling +  and arching +
polygamous +, dioecious +  and synoecious +