细苞虫实查看源代码讨论查看历史
| 细苞虫实 |
|
中文学名:细苞虫实 拉丁学名:Corispermum stenolepis Kitag. 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:中央种子目 科:藜科 亚 科:环胚亚科 族:虫实族 属:虫实属 |
细苞虫实（学名：Corispermum stenolepis）为苋科虫实属的植物，是中国的特有植物。分布于中国大陆的辽宁等地，生长于海拔350米至700米的地区，多生于河滩以及固定沙丘上，目前尚未由人工引种栽培。 [1]
细苞虫实形态特征
茎直立，高15-50厘米，圆柱状，直径1.5-2毫米；分枝纤细，多集中于中上部，长7-35厘米，通常下部分枝较长。
叶条形，极狭，长约3.5厘米，有时达4.5厘米，宽约1毫米，先端渐尖具小尖头，基部渐狭，全缘，1脉。穗状花序顶生或侧生，纤细，具稀疏的花；苞片由条状披针形至披针形，先端渐尖具小尖头，长0.6-3.5厘米宽1-2毫米，显著地比果狭。
花被片1，宽椭圆形，长0.9-1.2毫米，宽约0.6毫米；雄蕊1-3，花丝比花被片长。
果实近圆形，长4.5-5.5毫米，宽3.9-5毫米，顶端下陷呈深的缺刻，基部心脏形，背面凸起中央扁平，腹面凹入，两面均被星状毛；果核长椭圆形，长约3毫米，宽约1.5毫米；果喙长1.5-1.7毫米，喙尖为喙长的1/4,外弯；果翅宽，与果核宽相等或较核稍宽，薄，半透明，向两侧弯曲，缘具不规则细齿。花果期8-9月。
Corispermum stenolepis Kitag. in Rep. First Sci. Exped. Manch. Sect. 4, 2: 102. t. 13. 1935; idem Lineam. Fl. Manch. 190. 1939; 东北草本植物志2: 82. 1959; Baranov in Journ. Jap. Bot. 44 (6): 167. 1969;中国高等植物图鉴1: 589. f. 1177. 1972.
Corispermum stenolepis var. psilocarpum Kitagawa.
Plants 15-40 cm tall. Stem erect, terete, branched mostly from upper-middle part; branches slender, 10-35 cm. Leaves linear, 3.5-4.5 cm × ca. 1 mm, 1-veined, base attenuate, margin entire, apex acuminate, mucronate. Spikelike inflorescence slender, loose; bracts linear-lanceolate to lanceolate, 0.6-3.5 cm × 1-2 mm, narrower than utricle, apex acuminate, mucronate. Perianth segment 1, broadly elliptic, 0.9-1.2 × ca. 0.6 mm. Stamens 1-3; filaments longer than perianth segments. Utricle suborbicular, 4.5-5.5 × 4-5 mm, glabrous, subglabrous, or covered with stellate hairs, base cordate, apex deeply emarginate; wing equaling or slightly wider than body, margin irregularly denticulate; beak 1.5-1.7 mm, apex ca. 1/4 as long as beak, recurved. Fl. and fr. Aug-Sep.
- Riversides, dunes. W Jilin, W Liaoning (Chaoyang), Nei Mongol (Ju Ud Meng).
Plants with glabrous utricles were described as Corispermum stenolepis var. psilocarpum and reported from W Jilin. However, the typical variety also seems to have utricles glabrous or nearly so (there is no indication of utricle pubescence in the protologue of the species), and thus these infraspecific entities probably do not merit any formal taxonomic recognition.
Corispermum stenolepis and C. platypterum are related to C. macrocarpum and the North American C. pallidum Mosyakin (C. subsect. Platyptera Mosyakin).
细苞虫实产地生境
我国特产。产辽宁西部（昭乌达盟、朝阳）。生于河滩或固定沙丘上。