亞組5. 單蕊翠雀花亞組 Subsect. Monogyna

Subsect. Monogyna W. T. Wang， Subsect. nov. Type： Delphinium monogynum W. T. Wang.

A Subsect.Ceratophoris W. T. Wang differt petalis staminodiisque flavido-albis et gynoecio ex carpello uno costanti. Folia basalia et caulina， laminis 3-partitis. Inflorescentiae racemosae. Sepala purpurea， calcari sepalino breviora. Petala flavido-alba， apice integra. Staminodia petalis concoloria， limbis 2-lobatis ventere supra basin albo-barbatis. Gynoecium ex carpello uno constans.

葉基生并莖生，葉片3深裂。花序總狀。萼片紫色，比距短。花瓣淡黃白色，頂端全緣。退化雄蕊與花瓣同色;瓣片2淺裂，在腹面基部之上被白色髯毛。雌蕊群由1枚心皮組成。

1種， 產于甘肅中南部。

189. 單蕊翠雀花 圖版76： 3-6

Delphimum monogynum W. T. Wang， sp.

nov. Holotype 甘肅（Gansu）： 天祝縣，竹岔（Tianzhu County， Zhucha），alt. 2 500 m，路邊，花紫色（by road， fls. purple），1959-07-14，何業祺（Y. G. HE）4873 （PE）。

Herbs perennial， ca.25 cm tall. Stem above base 2 mm across， below with sparse spreading or retrorse short hairs 0.2-0.5 mm long， above glabrous， simple， 2-leaved. Basal leaves 3， with lower cauline leaf long petiolate; blades papery， pentagonal， 0.8-1.8 × 1.2-2.5 cm， at base deep cordate， 3-parted to 0.8-2 mm above base， central primary lobe rhombic， 5-8 mm broad， 3-lobed， secondary lobes ovate or narrow-ovate. l-denticulate or entire， lateral primary lobes subflabellate， unequally 2-lobed; surfaces adaxially very sparsely appressed-puberulous， abaxially glabrous; petioles 3-6 cm long， glabrous. Upper cauline leaf shortly petiolate. Raceme terminal， ca. 8 cm long， 4-flowered; lower 2 bracts foliaceous， upper one undivided， lanceolate-linear， ca. 1 cm long; rachis with spreading short hairs; pedicels 3-6 cm long， densely puberulous， above 2-bracteolate; bracteoles lanceolate-linear， 5-8 mm long. Sepals purple， outside appressed-puberulous， inside glabrous， upper sepal broad-ovate， ca. 9 × 5.5 mm， spur subulate， 18-19 mm long， straight， at base 2.8 mm across， lateral sepals oblong-obovate， ca. 10 × 5 mm， lower sepals elliptico-navicular， ca. 11 × 4 mm. Petals yellowis-white， glabrous， apex entire. Staminodes concolor with petals; limbs broad-oblong， 5 × 3 mm， at apex 2-lobed， long ciliate， adaxially obave base white-barbate; claws 3 mm long. Stamens ca. 5 mm long， glabrous. Carpel 1， glabrous; ovary suboblong， 0.8 × 0.3 mm; style 0.4 mm long.

特產于甘肅天祝縣。生于山地路邊，海拔2 500 m。