栏目

麦仁珠Galium tricorne Stokes

麦仁珠Galium tricorne Stokes

别名:roughfruit corn bedstraw;

科名:茜草科 Rubiaceae

属名:拉拉藤属 Galium

《中国植物志》第71(2)卷233页
  14. 麦仁珠(江苏南部种子植物手册)弯梗拉拉藤(西藏植物志)图版54:1-4
  Galium tricorne Stokes in With. Nat. Arr. Brit. Pl. ed. 2, 1: 153. 1787; DC. Prodr. 4: 608. 1830; Hook. f. Fl. Brit. Ind. 3: 207. 1881; Forb. et Hemsl. in Journ. Linn. Soc. Bot. 23: 395. 1888; E. Pritz. in Bot. Jahrb. 29: 583. 1901; Pampan. in Nuov. Giorn. Bot. Ital. 17: 719. 1910; Cuf. in Oesterr. Bot. Zeitschr. 89: 247. 1940; 江苏南部种子植物手册712. 1959; 中国高等植物图鉴4: 281. 1975; 西藏植物志4: 465. 1985, pro parte; 秦岭植物志1 (5): 24, 图16. 1985; 黄土高原植物志5: 25. 1989.
  一年生草本,高5-80厘米,茎具4角棱,棱上有倒生的刺,少分枝。叶坚纸质,6-8片轮生,带状倒披针形,长1-3.2厘米,宽2-6毫米,顶端锐尖,基部渐狭,常萎软状,干时常卷缩,两面无毛,在下面中脉和边缘均有倒生的小刺,1脉,在下面凸起,无柄。聚伞花序腋生,总花梗长或短于叶,稍粗壮,有倒生的小刺,通常具3-5花,常向下弯;花小,4数;花梗长3-7毫米,在花后较粗壮,具倒生的小刺,弓形下弯;花冠白色,辐状,直径1-1.5毫米,花冠裂片卵形;雄蕊伸出,花丝短;花柱2,柱头头状。分果爿近球形,单生或双生,直径2-2.5毫米,有小瘤状凸起,果柄较粗壮,弓形下弯。花期4-6月,果期5月至翌年3月。
  产山西、陕西、甘肃、新疆、江苏、安徽、江西、河南、湖北、四川、贵州、西藏。生于山坡草地、旷野、河滩、沟边,海拔450-3980米。分布于印度、巴基斯坦、亚洲西部、欧洲、非洲北部、美洲北部。

《Flora of China》 Vol. 19 (2011)
Galium tricornutum  Dandy Watsonia. 4: 47. 1957.
麦仁珠   mai ren zhu
Herbs, annual, weakly ascending to procumbent or clambering. Stems 5-80 cm tall, 4-angled, often little branched, glabrescent, densely retrorsely aculeolate on angles. Leaves in whorls of 6-8, subsessile; blade drying papery, narrowly oblanceolate to narrowly elliptic, 10-32 × 2-6 mm, glabrescent, upper side glabrous, lower side densely aculeolate along midrib, base acute, margins densely retrorsely and antrorsely aculeolate, apex acute; vein 1. Inflorescences elongated thyrsoid, cymes terminal and axillary on short lateral stems, mostly 3-5-flowered; axes retrorsely aculeolate; bracts none or leaflike and 3-5 mm; pedicels 0.3-2 mm. Ovary ellipsoid to didymous, 0.3-0.5 mm, smooth to verrucose or spinulose. Corolla white, rotate, 1-1.5 mm in diam., lobed for 2/3 or more; lobes triangular. Mericarps subglobose, ca. 3 × 4-6 mm, becoming verrucose to tuberculate but never with uncinate trichomes, pendulous on arching pedicels to 7 mm. Fl. Apr-Jun, fr. May-Mar.
Adventive weeds in meadows on mountain slopes, open fields, river beaches, ditch sides; 400-4000 m. Anhui, Gansu, Guizhou, Henan, Hubei, Jiangsu, Jiangxi, Shaanxi, Shanghai, Shanxi, Sichuan, Xinjiang, Xizang [India, Pakistan; N Africa, SW Asia, Europe, North America].
In general aspect and habit the weedy annual Galium tricornutum from G. sect. Kolgyda strongly resembles G. spurium and G. aparine but can be separated by its above glabrous leaves and its verrucose fruit on arching pedicels. Galium tricornutum apparently is rare in China. The above wide distribution data from FRPS evidently is due to misidentifications of the common G. spurium.In general aspect and habit the weedy annual Galium tricornutum from G. sect. Kolgyda strongly resembles G. spurium and G. aparine but can be separated by its above glabrous leaves and its verrucose fruit on arching pedicels. Galium tricornutum apparently is rare in China. The above wide distribution data from FRPS evidently is due to misidentifications of the common G. spurium.

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