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FOC | Family List | FOC Vol. 16 | Boraginaceae

46. Thyrocarpus Hance, Ann. Sci. Nat., Bot., sér. 4. 18: 225. 1862.

盾果草属 dun guo cao shu

Herbs annual. Leaves alternate, sessile or short petiolate. Cymes bracteate. Calyx 5-parted to base, slightly enlarged in fruit. Corolla campanulate; throat appendages 5, broadly linear to subulate; limb 5-parted; lobes broadly ovate. Stamens inserted at middle of corolla tube, included; filaments short; anthers ovoid to oblong. Ovary 4-parted. Style included; stigma terete. Gynobase conical. Nutlets ovoid, slightly dorsiventrally compressed, densely tuberculate; disc margin 2-layered, inside layer membranous and entire, outside layer leathery and pectinate-dentate; attachment scar at apex adaxially. Seeds ovoid, dorsiventrally compressed.

About three species: China, Vietnam; two species in China.

1 Stem leaves ovate to narrowly elliptic; corolla and calyx equal in length; teeth of outside layer of nutlet straight, not inflated at apex, inside layer not constricted inward   1 Thyrocarpus sampsonii
+ Stem leaves narrowly oblong to oblanceolate; corolla longer than calyx; anthers ovate-oblong; teeth of outside layer of nutlet distinctly inflated at apex and incurved, inside layer constricted inward   2 Thyrocarpus glochidiatus

Lower Taxa


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