連蕊芥檢視原始碼討論檢視歷史
| 連蕊芥 |
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中文名:興隆連蕊芥 二名法:Synstemon petrovii Botsch. 界:植物界 門:被子植物門 綱:木蘭綱 亞 綱:五椏果亞綱 目:白花菜目 科:十字花科 族:大蒜芥族 屬:連蕊芥 種:興隆連蕊芥 |
連蕊芥(lián ruǐ jiè)，學名 Synstemon petrovii Botsch.，俗名：柔毛連蕊芥，異名：Synstemon petrovii var. pilosus Synstemonanthus petrovii Synstemon deserticola Synstemon petrovii var. xinglongicus Synstemonanthus petrovii var. pilosus ，一般指興隆連蕊芥，十字花科植物，產於甘肅興隆山地區。 [1]
興隆連蕊芥簡介
一年生草本，無毛或有毛。莖生葉條形，下部的全緣或有窄裂片，開展，上部的全緣。花序無苞葉，花中等大小；萼片直立，近相等，卵圓形，頂端鈍，有白色邊緣；
基部不呈囊狀，無毛或有波狀毛；花瓣長於萼片，淡藍色，倒卵形，先端鈍圓，爪短，基部有長單毛；雄蕊6枚，長雄蕊花絲基部聯合，花葯長圓形，鈍；
側蜜腺環狀，與中蜜腺匯合。長角果線形，2室，果瓣與假隔膜呈平行方向扁壓，種子間略縊縮，呈念珠狀，開裂；果瓣膜質，有1中脈；隔膜薄，透明，無脈；
花柱細，柱頭略呈頭狀；果梗細。種子每室1行，多數，橢圓形，頂端有邊；子葉背倚胚根。莖與葉無毛；萼片上有毛或否；花瓣長5-5.5毫米，花絲基部稍聯合；長角果長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.
分類文獻
Synstemon petrovii Botsch. in Бот. ЖУр. 44 (10): 1487. fig. 2. 1959. ——Sisymbrium sp. , 蘭州植物通志 291. 照片, 1962.
興隆連蕊芥地區分布
產甘肅興隆山。模式標本採集於此。