Section：Furfuracea
Conservation Status：Endangered
Remarks：This name is accepted
References：
Camellia hongkongensis Seem. Trans. Linn. Soc. London 22: 342 (1859) Accepted Name
Thea hongkongensis (Seem.) Pierre Fl. Forest. Cochinch.: t. 117 (1887) Homotypic Synonym
Camellia integerrima Hung T.Chang Taxonomy of the genus Camellia: 26 (1981) Heterotypic Synonym [PDF]
全缘糙果茶 山茶属的系统研究, p.26-27 (1981) Chinese Name [PDF]
Camellia hongkongensis Seem. Chang Hung-ta and Bruce Bartholomew (1984). Camellias, p.95 Cited Name [PDF]
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» Description
Camellia hongkongensis, Subgenus Camellia, Sect. Camellia, Subsect. Reticulata Chang, Acta Sci. Nat. Univ. Sunyatseni, monogr. ser. 1: 56. 1981. Ser. Reticulatae Chang, Acta Sci. Nat. Univ. Sunyatseni, monogr. ser. 1: 61. 1981. Chang Hung-ta and Bruce Bartholomew (1984). Camellias, p.95: Camellia hongkongensis Seem., Trans. Linn. Soc. London 22:342. 1859, excl. Gaudichaud 271. [Description] Branchlets glabrous. Leaves oblong, 12 cm long, 3. 8 cm wide. Flowers sessile, red; bracts and sepals 9-10, scarious, not completely deciduous; petals 6-7, 3. 5 cm long; stamens with a filament tube, glabrous. Capsules globose, 3-3. 5 cm in diameter, 3-locular, 1-2 seeds per locule, pericarp 3-4 mm thick. [Distribution] Offshore islands of Guangdong. [Synonym] Camellia japonica Champ. ex Benth. in Hook., Journ. Bot. 3: 309. 1851, auct. non L. \Thea hongkongensis (Seem.)Pierre, Fl. For. Cochinchine 2: sub. pl. 117. 1887. Gao Jiyin, Clifford R. Parks, Du Yueqiang, 2005, Collected Species of the Genus Camellia an Illustrated Outline，p.42.
Camellia hongkongensis has most recently been assessed for The IUCN Red List of Threatened Species in 2015. Camellia hongkongensis is listed as Endangered under criteria B1ab(iii).
Note: Although C. hongkongensis was previously classified under Sect. Camellia (Chang 1981; Chang and Ren 1998; Ming et al. 2000; Ming and Bartholomew 2007), recent molecular studies (Xiao and Parks 2003; Vijayan et al. 2009; Zhao et al. 2023) have supported to place it within Sect. Furfuracea.
» Distribution
» Description
香港红山茶Camellia hongkongensis Seemanw in Trans. Linn. Soc. London, 22： t. 60, 1859, excl. Gaudichaud 271. 张宏达，1981. 《山茶属植物的系统研究》第71页。【标本】香港：陈焕镛 W.Y.Chun 9172；黄志 C. wang 30303；陈念劬N. K. Chun 40030, 40280, 40286；九龙，大龙农场，张宏达H. T. Chang 6558，6559. 广东：阳江，海陵岛，黄志C. wang 41713；清远，左景烈K.L.Tso 22729。分布：广东沿海岛屿。【形态特征】嫩枝无毛，叶长圆形，12x 3.8厘米；花无柄，红色；荀及萼片9-10，干膜 质，不完全脱落；花瓣6-7,长3.5厘米；雄蕊有花丝管，无毛；子房有毛；花柱3条，离生，无毛；蒴果球形，直径3-3.5厘米，3室，每室有种子1-2粒；果壳厚3-4毫米。
高继银、帕克斯、杜跃强，2005. 《山茶属植物主要原种彩色图集》浙江科学技术出版社，第42页。花玫瑰红色，带紫色调，花径5.2~6.5厘米，单花顶生。鱗片9~12枚，宿存。花瓣6~7枚，长3.0~4.0厘米，宽1.5~2.5厘米，阔倒卵形，先端圆或略凹缺，通常外卷，基部与雄蕊柱略连生。雄蕊无毛，长1.5 ~ 2.5厘米，外轮花丝基部连生形成短管。雌蕊长2.5~3.2厘米，花柱3条，完全离生，子房被绒毛。花期冬末至春季。蒴果扁球形或球形，表面略粗糙，直径2.0~3.5厘米，3室，果皮厚 2~4毫米。种子无毛。叶长圆状椭圆形，先端急尖，基部楔形或圆形，长4.0~12.5厘米，宽2.0~3.8厘米，边缘上半部具细齿，下半部全缘，叶面中脉略凹陷，侧脉清晰可见，叶背中脉凸起，无毛。叶柄长5~13毫米。灌木或小乔木，高可达10米，嫩枝红褐色，无毛，老枝光滑，灰白色。分布：中国香港特区一些岛屿和广东省沿海地区，海拔150-400米。 可寻地点:中国香港特区快活林谷。
香港红山茶最近一次于 2015 年进行了IUCN濒危等级评估，被评为濒危 Endangered（EN）。
» Distribution
Species in the Same Section: 红皮糙果茶 Camellia crapnelliana Tutcher、糙果茶 Camellia furfuracea (Merr.) Cohen-Stuart、硬叶糙果茶 Camellia gaudichaudii (Gagnep.) Sealy、多苞糙果茶 Camellia multibracteata Hung T.Chang & Z.Q.Mo、茶梨油茶 Camellia octopetala Hu、肖糙果茶 Camellia parafurfuracea S.Ye Liang ex Hung T.Chang、香花糙果茶 Camellia suaveolens C.X.Ye, X.J.Wang & X.G.Shi、全缘糙果茶 Camellia integerrima Hung T.Chang、多瓣糙果茶 Camellia polypetala Hung T.Chang、阔柄糙果茶 Camellia latipetiolata C.W.Chi、扁糙果茶 Camellia oblata Hung T.Chang & B.M.Barthol.、泰北山茶 Camellia suddeeana D.Wei Zhao、纯白山茶 Camellia albata Orel & Curry、弥勒糙果茶 Camellia mileensis T.L.Ming、双柏山茶 Camellia shuangbaiensis G.P.Yang & B.H.Wu、菲律宾糙果茶 Camellia philippinensis Hung T.Chang & S.X.Ren
