Silene gracilicaulis C.L.Tang
Acta Bot. Yunnan. 2(4): 434. 1980, 1980ID: 33 | IPNI
= Silene sericata C.L.Tang, Acta Phytotax. Sin. 24(5): 389. 1986 [18 Oct 1986], 1986 Type: ,
=Silene gracilicaulis var. rubescens (Franch) C.L. Tang, Acta Bot. Yunnan. 2(4): 437 (1980), 1980(Probably deserves specific status!) Basionym: Silene gracilicaulis var. longipedicellata C.L. Tang, Acta Bot. Yunnan. 2(4): 437 (1980), 1980 Type: ,
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Description:
Reference: Zhou L., Wu Z.-Y., Lidén, M. & Oxelman, B. (2001). Silene (110 spp.). In Wu Zhengyi & P. H. Raven (eds). Flora of China. 6: 66-100Silene gracilicaulis C. L. Tang, Acta Bot. Yunnan. 2: 434. 1980. œ∏”¨◊”≤› xi ying zi cao Silene gracilicaulis C. L. Tang var. longipedicellata C. L. Tang; S. gracilicaulis var. rubescens (Franchet) C. L. Tang; S. sericata C. L. Tang; S. tenuis Willdenow f. rubescens Franchet; S. tenuis Willdenow var. denudata Y. W. Tsui & L. H. Zhou; S. tenuis Willdenow var. rubescens (Franchet) Diels. Herbs perennial, (15–)20–50 cm. Roots robust, slightly lignified. Stems sparsely, rarely densely, caespitose, erect or ascending, simple, rarely 1- or 2-branched below, glabrous, rarely shortly pubescent. Basal leaves numerous, linear-oblan-ceolate, 6–18 cm × 2–5 mm, both surfaces glabrous, ciliate ba-sally, base attenuate into petiole, apex acuminate at apex; cau-line leaves linear-lanceolate, smaller than basal leaves, ciliate, base half clasping. Flowers in a racemiform thyrse; cymules opposite, 1-flowered (rarely more); peduncles very short. Pedi-cel nearly as long as calyx, glabrous; bracts ovate-lanceolate, 4–12 mm, ciliate, base connate, apex acuminate. Calyx narrowly campanulate, 8–15(–18) × 4 mm, glabrous, longitudinal veins violet, connate at apex; calyx teeth triangular-ovate, margin membranous, white, shortly ciliate, apex obtuse. Androgyno-phore ca. 2 mm, shortly hairy. Petal claws oblanceolate, gla-brous, auricles triangular; limbs exserted beyond calyx, white, violet or pink below, bifid to middle or below, lobes narrowly rounded; coronal scales rotund, small. Stamens and styles ex-serted; filaments glabrous. Styles 3. Capsule rotund-ovoid, 6–8 mm. Seeds rotund-reniform, ca. 1 mm. Fl. Jul–Aug, fr. Aug–Sep. • Gravelly grasslands, mountains; 3000–4000 m. Nei Mongol, Qinghai, Sichuan, Xizang, Yunnan. Silene gracilicaulis var. rubescens, from Yunnan, is distinct from the typical variety in having larger flowers with pink petals. Consid-ering the subtle differences between other species recognized in this group, it may well deserve specific status. Silene sericata was distinguished on its ciliate calyx teeth, which in fact is a common character for all taxa in this group (as well as most of the genus Silene). Silene pterosperma Maximowicz (Trudy Imp. S.-Peterburgsk. Bot. Sada 11: 67. 1889) was placed in this group in FRPS, but we believe it more likely that this taxon is related to S. salicifolia (see note under that species) or S. hupehensis.
Comment:
Superordinate taxon: Silene sect. Graminiformes Lazkov (ID: 1087)