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中文名:兴隆连蕊芥 二名法:Synstemon petrovii Botsch. 界:植物界 门:被子植物门 纲:木兰纲 亚 纲:五桠果亚纲 目:白花菜目 科:十字花科 族:大蒜芥族 属:连蕊芥 种:兴隆连蕊芥 |
连蕊芥(lián ruǐ jiè)，学名 Synstemon petrovii Botsch.，俗名：柔毛连蕊芥，异名：Synstemon petrovii var. pilosus Synstemonanthus petrovii Synstemon deserticola Synstemon petrovii var. xinglongicus Synstemonanthus petrovii var. pilosus ，一般指兴隆连蕊芥，十字花科植物，产于甘肃兴隆山地区。 [1]
兴隆连蕊芥简介
一年生草本，无毛或有毛。茎生叶条形，下部的全缘或有窄裂片，开展，上部的全缘。花序无苞叶，花中等大小；萼片直立，近相等，卵圆形，顶端钝，有白色边缘；
基部不呈囊状，无毛或有波状毛；花瓣长于萼片，淡蓝色，倒卵形，先端钝圆，爪短，基部有长单毛；雄蕊6枚，长雄蕊花丝基部联合，花药长圆形，钝；
侧蜜腺环状，与中蜜腺汇合。长角果线形，2室，果瓣与假隔膜呈平行方向扁压，种子间略缢缩，呈念珠状，开裂；果瓣膜质，有1中脉；隔膜薄，透明，无脉；
花柱细，柱头略呈头状；果梗细。种子每室1行，多数，椭圆形，顶端有边；子叶背倚胚根。茎与叶无毛；萼片上有毛或否；花瓣长5-5.5毫米，花丝基部稍联合；长角果长2.5-3.5厘米。
Synstemon deserticola Y. Z. Zhao; S. petrovii var. pilosus Botschantzev; S. petrovii var. xinglongicus Z. X. An; Synstemonanthus petrovii (Botschantzev) Botschantzev; S. petrovii var. pilosus (Botschantzev) Botschantzev.
Herbs annual, 15-30 cm tall. Stems often branched basally and above, sparsely pilose or glabrescent. Basal leaves shortly petiolate, not rosulate, often withered by flowering, pinnatipartite, 1-2 cm × 3-5 mm, apex acute. Cauline leaves linear, sessile, 0.5-4 cm × 0.5-1.7 mm, somewhat fleshy, margin entire, apex acute, sparsely pilose.
Fruiting pedicels divaricate or ascending, slender, glabrous, 4-10 mm. Sepals oblong, 2-2.5 × 0.9-1.2 mm, glabrous or densely pilose. Petals lilac, obovate, 4-5.5 × 1.7-2.8 mm, apex rounded; claw 1-2.5 mm, sparsely to densely pilose. Filaments of median stamens 2-3.5 mm, united at base, sparsely to densely pilose on basal half; lateral stamens 1-2 mm, pilose basally; anthers oblong, 0.6-0.8 mm. Ovules 20-24 per ovary.
Fruit linear, compressed, (0.5-)1.3-3 cm × 0.8-1.5 mm, straight; valves sparsely pubescent basally when young, soon glabrescent, with a distinct midvein; gynophore ca. 0.5 mm; style 0.5-1 mm. Seeds oblong, 1.2-1.7 × 0.7-0.9 mm. Fl. and fr. Jun.
- Slopes, deserts, rocky and sandy flats; 1500-2400 m. Gansu, Nei Mongol.
分类文献
Synstemon petrovii Botsch. in Бот. ЖУр. 44 (10): 1487. fig. 2. 1959. ——Sisymbrium sp. , 兰州植物通志 291. 照片, 1962.
兴隆连蕊芥地区分布
产甘肃兴隆山。模式标本采集于此。