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31. The natural calyx pigment of Physalis alkekengi was extracted with several different reagents and its physical andchemical characters were studied.

32. Bracts lanceolate to broadly lanceolate, apex long acuminate, shorter than calyx. Corolla tube without hairy annulus inside.

33. A series of qualitative experiment of roselle calyx red pigment was done so that the chemical structure of the pigment was appraised preliminarily.

34. Roselle calyx red pigment extracting liquid was enzymolysised by pectinase to improve extracting technology so that the pigment extraction rate was increased.

35. Leaves 3–5-foliolate, abaxially tomentose, glabrescent , subglabrous when old. Branchlets, petioles, pedicel, and abaxial surface of calyx with sparse, glandular hairs.

36. Calyx tube outside have pilose; sepals inside and outside glabrous or reversing the top hairy.

37. Calyx tubular, campanulate, or cup-shaped, apex truncate to deeply lobed, sometimeswithabaxial glands, leathery, falling with petals and stamens.

38. Calyx campanulate, tubular, or funnelform, sometimes 2-lipped, usually truncate or shortly 5-dentate .

39. Pedicel and calyx hispid; flowers solitary or 2 or 3 together in short raceme.sentencedict.com

40. The tomatillo is covered with a thin membrane, or calyx, that is a brownish orange color with purple veins.

41. Leptothrium , while the indumentum of calyx margins is various and can not be used to distinguish the species.

42. With the development of flower, the stomatal density and stomatal index on the petal, bract and calyx increased firstly and then decreased.

43. Calyx campanulate or cup-shaped, 5-lobed, often 10-ribbed basally and plicate in bud.