Show Lower Taxa
Hypericum sect. Roscyna
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 95[III,6]: 211. 1893.
Basionym: Undefined sect. Roscyna Spach Ann. Sci. Nat., Bot., s é r. 2, 5: 364. 1836
Herbs, perennial, black glands absent. Leaves persistent (base not articulated). Flowers 40–70 mm diam.; sepals persistent, 5; petals persistent, 5; stamens persistent, 150, in 5 fascicles, fascicles usually distinct, rarely 1 pair connate; ovary (4–) 5-merous; placentation axile; styles ± appressed, bases ± connate or distinct; stigmas ± broadly capitate. Seeds ± carinate.
Distribution
e North America, ne, e Asia
Discussion
Species 2 (1 in the flora).
The other species in the section, Hypericum przewalskii Maximowicz, is endemic to China.
Selected References
None.
Lower Taxa
... more about "Hypericum sect. Roscyna"
isodiametric +
yellow;orange +
dehiscing +
oblong;ellipsoid +
punctiform +
2-5-valved +
straight +
absent +
branching +
stellate +
capsular +
septicidal +
black +
absent +
simple +
opposite +
persistent +
like +
glandular-ciliate +
(4-)5-merous +
axile +
superior +
anatropous +
1;2 +
various +
glanduliferous +
contorted +
persistent +
distinct +
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. +
1893 +
carinate +
persistent +
fascicles +
persistent +
1;150 +
fascicles +
absent +
reduced +
capitate +
appressed +
spreading;more or less appressed +
2;5 +
elongate +
Hypericum sect. Roscyna +
Hypericum +
section +
scalariform +
rhizomatous +
perennial +