短柱管蕊茶 Camellia connata (Craib) CraibCamellia connata

Camellia connata, Subgenus Thea, Sect. Calpandria, Chang Hung-ta and Bruce Bartholomew (1984). Camellias, p.137: Camellia connata(Craib) Craib, Fl. Siam. Enum., 131. 1925. [Description] Branchlets pubescent. Leaves oblong 9 cm long, 4 cm wide. Pedicels 4 mm long; bracts 5-6, persistent; sepals 5, persistent; petals 5, filaments completely connate into along tube, ovaries pubescent; styles 3-parted, extremely short. Capsules globose, 3 cmin diameter; 1 seed per locule, pericarp thin. [Distribution] Thailand. [Synonym] Thea connata Craib, Kew Bull. 1914(1):6. 1914.

Shrub or small tree, 2–10 m high. Leaves chartaceous, oblong-ellipticor elliptic, 6–9 by 2.5–4 cm; apex acute or acuminate; base cuneate to rounded; margin crenate or crenulate; petiole 4–7 mm long. Bracteoles and sepals not clearly differentiated, 10–11, ovate to rounded, 3–5.5 mm long. Petals white, 5, obovate to broadly elliptic, 8–13 mm long, concave; apex rounded. Filaments of the outer stamens united their whole length to form a tube irregularly dentate above; anthers attached on the sinus; inner stamens 3–5, free. Ovary densely tomentose, 4 mm long; style short and stout, 3-branched. Capsule subglobose, 2.8 cm high, 3-sulcate with 1 large seed in each locule, or rounded with only 1 seed developed.

Camellia connata has most recently been assessed for The IUCN Red List of Threatened Species in 2015. Camellia connata is listed as Data Deficient.

Thailand : NORTHERN: Chiang Mai (Doi Suthep – type, Fang, Doi Inthanon); NORTH-EASTERN: Loei (Phu Kradueng); CENTRAL: Saraburi (Kliao Yai); PENINSULAR: Ranong (La-un), Surat Thani (Ban Tha Kham). In evergreen forests, often by stream or shade places from low to medium altitudes (800–2000 m).

Endemic to Thailand.

短柱管蕊茶Camellia connata (Craib) Craib, FI. Siam. Knum. 131, 1925； Sealy, l.c.145. 1958. 张宏达，1981. 《山茶属植物的系统研究》第108页。【标本】，分布：泰国。【形态特征】嫩枝有毛，叶长圆形，9x4厘米，花梗长4毫米；苞片5-6,宿存；萼片5,宿存；花瓣5；雄蕊的花丝完全连生成长管；子房有毛；花柱3条，极短。蒴果球形，直径3厘米，每室有种子1个，果爿薄。

灌木或小乔木，高2-10米。叶纸质，长圆状椭圆形或椭圆形，长6-9 厘米，宽2.5-4 厘米；先端锐尖或渐尖；基部楔形到圆形；边缘具圆齿或细圆齿；叶柄长 4-7 毫米。小苞片和萼片分化不明显，10-11，卵形到圆形，长 3-5.5 毫米。花瓣白色，5枚，倒卵形到宽椭圆形，长8-13毫米，凹陷；先端圆形。外雄蕊的花丝全长合在一起，形成管状，上面有不规则的齿状；花药附着在凹缺上；内雄蕊 3-5，离生。子房密被绒毛，长 4 毫米；花柱短而粗壮，3 分枝。蒴果近球形，高2.8厘米，3室，每室有1粒大种子，或圆形，仅有1粒种子发育。

短柱管蕊茶最近一次于 2015年进行了IUCN濒危等级评估，被评为数据缺乏 Data Deficient（DD）。

常绿林中，通常在溪边或中低海拔（800-2000米）的阴凉处。泰国特有种。