143. Berberis calcipratorum Ahrendt, J. Linn. Soc., Bot. 57: 130. 1961.
钙原小檗 gai yuan xiao bo
Shrubs, deciduous, 1-3 m tall. Branches dark red, sulcate, white pruinose; spines simple or 3-fid, orange-yellow, shiny, 8-15 mm, stout. Leaves subsessile; leaf blade abaxially brown, adaxially dark green, narrowly obovate, 1-2.5 × 0.4-1.1 cm, thinly papery, abaxially white pruinose, occasionally not pruinose, midvein and reticulate veins raised, adaxially sometimes with slightly raised reticulate veins, base cuneate, margin slightly thickened, entire, apex obtuse, mucronate. Inflorescence an umbellate raceme or subumbel, 2-5-flowered, 2-3 cm, sometimes with few fascicled flowers at base; rachis pruinose; bracts lanceolate, ca. 2 mm, pruinose, apex acuminate. Pedicels 5-10 mm, white pruinose; bractlets ovate, ca. 3 mm, apex acuminate. Flowers orange. Sepals in 2 whorls; outer sepals elliptic, ca. 5.5 × 4 mm; inner sepals obovate, ca. 7.5 × 4 mm. Petals oblong-obovate, ca. 5.5 × 3.5 mm, base clawed, with separate elliptic glands, apex emarginate. Stamens ca. 3.5 mm; anther connective slightly prolonged, apiculate. Ovules 2-4, shortly funiculate. Berry unknown. Fl. May-Jun, fr. unknown.
● Forests, thickets; 3300-3700 m. Yunnan.