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FOC | Family List | FOC Vol. 16 | Boraginaceae

21. Sinojohnstonia H. H. Hu, Bull. Fan Mem. Inst. Biol. Bot. 7: 201. 1936.

车前紫草属 che qian zi cao shu

Herbs perennial, usually rhizomatous. Stems erect or prostrate. Leaves alternate. Basal leaves long petiolate, ovate-cordate; stem leaves smaller, short petiolate. Cymes terminal, racemose or paniculate. Calyx 5-parted to near base, enlarged, becoming saccate in fruit. Corolla tubular to funnelform; throat appendages 5, shallowly 2-cleft; limb 5-parted, spreading. Stamens inserted above middle of corolla tube or at throat between appendages, exserted or included; filaments filiform. Ovary 4-divided. Style elongated; stigma capitate; ovules anatropous. Gynobase low fastigiate. Nutlets tetrahedral; margin abaxially exserted, becoming a cupular emergence; attachment scar slightly below middle adaxially.

Three species: endemic to China.

1 Stamens included; corolla tube distinctly shorter than limb; nutlets pubescent; plants without rhizomes   1 Sinojohnstonia moupinensis
+ Stamens slightly exserted; corolla tube ca. as long as to longer than limb; nutlets glabrous or sparsely pubescent; plants with rhizomes.   (2)
2 (1) Corolla lobes narrowly triangular, ca. as long as tube; stamens inserted on throat between appendages   2 Sinojohnstonia plantaginea
+ Corolla lobes ovate, ca. 1/2 as long as tube; stamens inserted below throat appendages   3 Sinojohnstonia chekiangensis

Lower Taxa


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