箱田金花茶 Camellia hakodae Ninh, Tr.Camellia hakodae

Camellia hakodae Ninh, Tr. Gen. Camellia Polyspora Vietnam: 37 (2023).

The specimen was first discovered by Tran Ninh in 2002 in My Yen (Thai Nguyen). In 2007, Tran Ninh published in the Scientific Journal of Hanoi National University (VNU Journal of Science) with the scientific name Camellia hakodae Ninh, Tr. The species name is named after Japanese scientist Naotoshi Hakoda, who has made many contributions to the research and conservation of indigenous tea in Vietnam.

Shrub or small tree, about 3-4 m high; young branches light brown, glabrous. Leaves stalked; petioles 8-15 mm, glabrous; blades thickly coriaceous, glabrous, elliptic or oblong, 23.5-29 cm long, 9-11.5cm wide; base cuneate or rounded; apex acuminate; margins serrulate; lateral veins 12-16 pairs. Flowers yellow, 6-8 cm in diameter, terminal or axillary; pedicels 1-1.2 cm long; bracteoles 5-6; sepals 5, broadly lunate or suborbicular, inner surface pubescent; petals 16-17, suborbicular to elliptic, pubescent inside; androecium 4-4.5 cm long, pubescent; gynoecium glabrous, ovary 4-5, styles 4-5, free to the base, glabrous. Fruits globose, 5-6 cm in diameter; pericarp 4.5-6.5 mm thick. Seeds glabrous.

Blooming season: Late winter to early spring.

Distribution: Except Tam Dao Mountains, this species has been cultivated as medicinal plants from North to South Vietnam. Endemic species to Vietnam.

Vietnam:My Yen (Thai Nguyen)

箱田金花茶 Camellia hakodae Ninh.

该标本由 Tran Ninh 于 2002 年在越南美延（太原）首次发现。2007 年，Tran Ninh 在《河内国立大学科学》（VNU Journal of Science）上发表了该物种的学名 Camellia hakodae Ninh. Tr。 该物种名称是以日本科学家箱田直纪的名字命名，他为越南本土茶叶的研究和保护做出了许多贡献。

南宁市金花茶公园，2021.《国内外金花茶物种图鉴》，广西科学技术出版社，第106-107页。【形态特征】多年生常绿灌木，高3.0-4.0m。树皮灰褐色。嫩枝圆柱形，棕绿色，光滑无毛；老枝橙棕色。叶芽绿色带棕色斑块，长扁球形，基部较宽，尖端锋利，欲展开时长3.4-6.4cm，宽0.6-0.7cm。叶互生。嫩叶初生时紫棕色或深紫棕色，随后渐变为棕绿色，光滑无毛，有光泽。成熟叶片厚革质，硕大，椭圆形至宽椭圆形或近长方形，长15.6-37.3cm，宽9.3-19.1cm，叶缘有稀疏细锯齿，排列规则，先端渐尖或钝尖，基部楔形或宽楔形，正面深绿色，背面浅绿色有较多黑色腺点，两面均光滑无毛；侧脉13-17对；主脉和侧脉在叶两面均很明显，在叶面凹陷，在叶背凸起；叶柄较长，1.1-2.4cm，光滑无毛。花金黄色，单生枝顶或叶腋，直径6.0-8.0cm；花梗长约1.4cm；苞片4-6枚，指甲状或鳞片状，长1.0-4.0mm，宽2.0-7.0mm，边缘和里面有灰白色短茸毛；萼片4-5枚，鳞片状，长4.0-6.0mm，宽7.0-12.0mm，边缘和里面有灰白色短茸毛；花瓣16-18枚，近圆形、近长方形或椭圆形，长2.6-4.2cm，宽1.8-2.3cm，里面有灰白色短茸毛；雄蕊多数，花丝长2.5-3.3cm，外轮于基部至1.4-2.1cm处合生，内轮离生，被灰白色短茸毛；雌蕊光滑，花柱4-5条，长3.2-4.5cm，离生；子房近球形，光滑无毛，4-5室。蒴果近球形，成熟果皮揭绿色或红褐色，基部具紧贴的宿存萼片和苞片，直径5.0-9.1cm，高3.6-7.1cm，重92.4-301.8g，果皮较厚，6.5-13.5mm。种子每室3-4粒，三角状球形，棕色，密被灰棕色长茸毛。花期12月至翌年1月，果熟期9-10月。【原产地】该种是越南的一个特有种，分布于越南永福省，生长在海拔150-500m的常绿阔叶林中。【识别要点】该种成熟叶片硕大，椭圆形至宽椭圆形或近长方形，长15.6-37.3cm，宽9.3-19.1cm；花金黄色，花朵较大，花瓣较多，有16-18枚；菊果较大，果皮较厚，种子密被灰棕色长茸毛。

越南美延（太原）