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FOC | Family List | FOC Vol. 24 | Liliaceae | Allium

25. Allium cyaneum Regel, Mélanges Biol. Bull. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg. 3(2): 174. 1875.

天蓝韭 tian lan jiu

Allium hugonianum Rendle; A. szechuanicum F. T. Wang & T. Tang; A. tui F. T. Wang & T. Tang.

Bulbs clustered, cylindric, 0.2--0.4(--0.6) cm in diam.; tunic dark brown, usually not distinctly reticulate. Leaves shorter or longer than scape, 1.5--2.5 mm wide, semiterete, adaxially channeled. Scape 10--30(--45) cm, terete, covered with leaf sheaths only at base. Spathe 1- or 2-valved, deciduous. Umbel subfascicled, sometimes hemispheric. Pedicels subequal, 1--2 × as long as perianth, ebracteolate. Perianth blue; segments ovate to oblong-ovate, 4--6.5 × 2--3 mm; inner ones slightly longer than outer. Filaments equal, 1.3--2 × as long as perianth segments, connate at base and adnate to perianth segments; outer ones subulate; inner ones broadened at base, base sometimes 1-toothed on each side. Ovary subglobose, with concave nectaries covered by short, hoodlike projections at base. Style exserted. Fl. and fr. Aug--Oct. 2 n = 32*.

Forest margins, slopes, meadows; 2100--5000 m. Gansu, W Hubei, Ningxia, Qinghai, Shaanxi, Sichuan, Xizang [Korea].

Allium cyaneum var. deltoides S. O. Yu et al. (J. Korean Pl. Taxon. 11(1--2): 29. 1981) was described from Korea, but no material has been seen by the present authors.


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