Dipsacaceae


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Dipsacaceae

 

(teasels), a family of dicotyledonous plants consisting mostly of herbs with opposite exstipulate leaves. The flowers of teasels are usually grouped in dense heads surrounded by a many-leaved involucre. The fruit is an achene (inferior and dicarpellary) that is enclosed in a tight-fitting involucre and usually crowned with a calyx. There are eight to ten genera and about 250 species in the family, growing in the eastern hemisphere, primarily in the Mediterranean countries. Teasels are less common in the western hemisphere, where they grow in western Asia and in Africa along the mountains of East Africa to the south of the continent. There are seven genera and more than 70 species in the USSR, primarily in the Caucasus. The most important species are the scabious (the commonly encountered devil’s bit, or Succisa praemorsa), cephalaria (Pterocephalus), the teasel (which has the greatest economic significance), the small scabious, and the field scabious. Certain members of the Dipsacaceae family are sometimes cultivated for orna-mental purposes.

REFERENCES

Bobrov, E. G. “Vorsiankovye.” In Flora SSSR, vol. 24. Moscow-Leningrad, 1957.
Takhtadzhian, A. L. Sistema i filogeniia tsvetkovykh rastenii. Moscow-Leningrad, 1966.

M. E. KIRPICHNIKOV

References in periodicals archive ?
Knautia macedonica, with its tall slender flower stems and deep purple-red flowers will start to flower over the next few weeks and will, like most Dipsacaceae plants, support a good bee population.
Cyclanthaceae [225], Dipsacaceae [5, 185], Euphorbiaceae [7],
Chloranthaceae [251], Cucurbitaceae [71], Dipsacaceae [5,
Such graded morphs occur in some Brassicaceae (Iberis) (Busch & Zachgo, 2007), Apiaceae (Orlaya) (Froebe, 1980; Classen-Bockhoff, 1992), Asteraceae (Hieracium), and Dipsacaceae (Scabiosa) (Kunze, 1976) (Fig.
Unequivocal examples of tertiary syncephalia are rare in the Asteraceae (found only in four genera to date) but are often found in other families such as the Dipsacaceae and Calycer aceae.
Tertiarily condensed heads are much rarer in distribution, but examples of taxa displaying such inflorescences are found in the Asteraceae, Calyceraceae, Adoxaceae, Dipsacaceae, and Brunoniaceae.
periclymenum [113, 115, 124, 150] Dipsacaceae Knautia arvensis (L.
A series of articles by Philipson (1946, 1947a, 1947b, 1947c, 1948) compared histogenetic changes of the apical meristem, based on histological sections, during inflorescence onset and flower initiation in several taxa of Asteraceae, plus taxa of adjacent families Valerianaceae and Dipsacaceae.