厚葉鵝耳櫪

厚葉鵝耳櫪
來自植物智的圖片

中文學名:厚葉鵝耳櫪拉丁學名:Carpinus pubescens Burk. var. firmifolia (H. Winkl.) Hu 界:植物界門:被子植物門綱:雙子葉植物綱亞綱:原始花被亞綱目:山毛櫸目科:樺木科族:榛族屬:鵝耳櫪屬組:鵝耳櫪組亞組:雲南鵝耳櫪亞組

厚葉鵝耳櫪(hòu yè é ěr lì)，學名 Carpinus firmifolia (H. Winkler) Hu，異名：Carpinus pubescens var. firmifolia Carpinus turczaninowii var. firmifolia Carpinus pubescens var. bigiehensis ，樺木科（ Betulaceae）鵝耳櫪屬（Carpinus）雲貴鵝耳櫪的變種。為喬木，與原變種的區別在葉脈。產貴州。 ^[1]

厚葉鵝耳櫪形態特徵

喬木10米高；樹皮深灰色。小枝黑色灰色，細長，幼時濃密黃褐色具長柔毛，稀少地成為pilcircaPetiole約5毫米，密被長柔毛；

葉片卵形，卵狀橢圓形，或卵形長圓形， 2.7-5 * 1.5-2(-3.5) 厘米，革質，被絹毛具長柔毛沿脈，側脈11或12在中脈兩邊各，背面突起，正面凹陷。

雌花序 4-5 * 1.5-2 厘米； pedcirca短，約2毫米，密被長柔毛；苞片semiovate， 1.4-1.6厘米×5-6毫米，疏生長柔毛，外部邊緣不規則具牙齒，脈5，網脈明顯。

卵圓形的Nutlet brcirca，大約4×毫米，除疏生長柔毛在先端之外無毛，顯著用助材加固。花期 5月7月，果期7月9月。

葉片卵形或橢圓形，長4-5厘米，寬2-2.5厘米，頂端銳尖，葉脈在葉上面凹陷與原變種區別。

Carpinus turczaninowii Hance var. firmifolia H. Winkler in Engler, Bot. Jahrb. Syst. 50(Suppl.): 505. 1914; C. pubescens Burkill var. bigiehensis Hu; C. pubescens var. firmifolia (H. Winkler) Hu ex P. C. Li.Trees to 10 m tall; bark dark gray.

Branchlets black-gray, slender, densely yellow-brown villous when young, becoming sparsely pilose. Petiole ca. 5 mm, densely villous; leaf blade ovate, ovate-elliptic, or ovate-oblong, 2.7-5 × 1.5-2(-3.5) cm, leathery, abaxially sericeous-villous along veins, bearded in axils of lateral veins, adaxially villous along midvein, base subcordate or subrounded, margin regularly and doubly minutely serrate, apex acuminate; lateral veins 11 or 12 on each side of midvein, raised abaxially, impressed adaxially.

Female inflorescence 4-5 × 1.5-2 cm; peduncle short, ca. 2 mm, densely villous; bracts semiovate, 1.4-1.6 cm × 5-6 mm, sparsely villous, outer margin irregularly dentate, without basal lobe, inner margin entire, with inflexed basal auricle, apex acute; veins 5, reticulate veins prominent.

Nutlet broadly ovoid, ca. 4 × 3 mm, glabrous except sparsely villous at apex, prominently ribbed. Fl. May-Jul, fr. Jul-Sep.

分類文獻

Carpinus pubescens Burk. var. firrniflia (H. Winkl.) Hu. Comb. nov. Carpinus firmifolia Hu,靜生匯報n. ser. 1: 144. 1948.中國森林樹木圖志2: 170. 圖版68. 1948. ——Carpinus turczaninowii Hance var. firmifolio H. Winkl. in. Engler. Bot. Jahrb. 50 (Suppl.): 505. 1914. ——Carpinus pubescens. Burk. var. bigiehensis Hu. 植物分類學報9 (3): 290. 1964.