Section：Thea
Conservation Status：
Remarks：
This name is accepted.
References：
Camellia angustifolia Hung T.Chang Taxonomy of the genus Camellia: 119 (1981) Accepted Name
Camellia sinensis var. pubilimba auct. non Hung T. Chang T.L. Ming in Acta Bot. Yunnan. 14 (2): 129. 1992 et in Monogr. Camellia 135. 2000 Homotypic Synonym
Camellia angustifolia Hung T. Chang Deng H, Liao X, Yu X, Liu Z, Yang S (2025) Reinstatement of the independent specific status of Camellia angustifolia, a tea plant (Camellia sect. Thea, Theaceae) from Guangxi, China. PhytoKeys 267: 1–8. https://doi.org/10.3897/phytokeys.267.174664 Cited Name [PDF]
» Description
Camellia angustifolia Hung T. Chang in Acta Sci. Nat. Univ. Sunyats. 20 (1): 96 (Tax. Gen. Camellia 119).1981 et 23 (1): 9. 1984; Hung T. Chang & B. Bartholomew, Camellias 147, pl. 48. 1984; Hung T. Chang in Fl. Guangxi 1: 787. 1991; Hung T. Chang, Fl. Reip. Pop. Sin. 49 (3): 129, pl. 31: 2. 1998. Deng H.Q et al. 2025.Reinstatement of the independent specific status of Camellia angustifolia, a tea plant (Camellia sect. Thea, Theaceae) from Guangxi, China. PhytoKeys 267:1-8. https://doi.org/10.3897/phytokeys.267.174664.
= C. sinensis var. pubilimba auct. non Hung T. Chang: T.L. Ming in Acta Bot. Yunnan. 14 (2): 129. 1992 et in Monogr. Camellia 135. 2000; T.L. Ming & B. Bartholomew, Fl. China 12: 377. 2007, quoad syn. C. angustifolia.
Type. China Guangxi: • Jinxiu, in shade on slope, 1520 m, 16 July 1958, Y.K. Li 400664 (holotype: SCBI0003466!; isotype: IBK00190495!) .
Description. Evergreen arbor, 10–20 m tall. New branchlets glabrous, terminal buds sparsely to densely pubescent. Petioles 5–10 mm long, glabrous; leaf blades lanceolate, oblong to elliptic, 7–13 × 2–5 cm, coriaceous, abaxially yellowish green, glabrous or subglabrous, adaxially dark green, glabrous, shiny, midrib and secondary veins abaxially elevated and adaxially impressed, secondary veins 10–13 pairs, base cuneate, apex acuminate, margin serrulate. Flowers axillary, solitary or paired, 4–5 cm in diam. Pedicels 6–12 mm long, glabrous. Bracteoles 2 (–3), caducous. Sepals 5, persistent, suborbicular, 5–9 × 5–10 mm, abaxially glabrous, adaxially sericeous, margin ciliolate. Petals 7–8 in 1–2 whorls, white, elliptic to obovate, 15–30 × 15–20 mm, glabrous on both surfaces, apex obtuse to rounded, inner 4–5 petals basally connate to each other and adnate to the filament tube for 3–4 mm. Stamens numerous, 18–22 mm long, in 2–3 whorl; filaments glabrous, filaments of the outer whorls basally connate for 3–5 mm, filaments of the innermost whorl free. Ovary 3-loculed, globose to ovoid, densely tomentum. Styles 1, 16–20 mm long, pubescent almost the entire length, apically 3-lobed for 3–5 mm. Capsule globose, 3–4 cm in diam., 3-loculed with 1–2 seeds per locule; pericarp 2–3 mm thick. Seeds fuscous, globose, ca. 1.5 cm in diam., glabrous.
Phenology. Flowering September–October, fruiting August–September.
Distribution and habitat. Endemic to northern Guangxi, China, in the evergreen broadleaf forest at the elevations of 930–1390 m.
Additional specimens examined. China Guangxi: • Jinxiu, 14 September 2021, S.X. Yang & P.M. Ye 6752, 6753, 6754, 6755, 6756, 6757 (KUN); 16 February 2023, S.X. Yang, P.M. Ye et H.M. Tan 7060, 7061, 7062, 7063, 7064, 7065, 7066, 7067, 7068, 7069 (KUN). • Lingui, 15 February 2025, S.X. Yang, Z.S. Liu, Y.L. Pan, H.Q. Deng et H.L. Xiao 7811, 7812, 7813, 7814, 7815, 7816, 7817, 7818, 7819, 7820, 7821, 7822, 7823, 7824 (KUN). • Longsheng, 1 May 2025, S.X. Yang, H.Q. Deng et X.Y. Wang 7941,7942, 7944, 7945 (KUN). • Rongshui, 21 July 2014, X.Q. Yu YXQ125 (KUN); 3 May 2025, S.X. Yang, Z.S. Liu et H.Q. Deng 7959, 7960, 7961, 7962, 7963 (KUN).
Table 1. Morphological comparison between Camellia angustifolia and C. sinensis var. pubilimba.
| Character | C. angustifolia | C. sinensis var. pubilimba |
| Life form | arbor, 10–20 m tall | shrub, 1–3 (–5) m tall |
| Terminal buds | sparsely to densely pubescent | densely pubescent |
| Branchlet | glabrous | pubescent |
| Abaxial surface of leaf blade | glabrous | pubescent |
| Diameter of flower | 4–5 cm | 2.5–3.5 cm |
| Pedicel | 6–12 mm long, glabrous | 5–10 mm long, pubescent |
| Size of sepals | 5–9 mm | 2–4 mm |
| Indumentum of sepals | outside glabrous, inside sericeous | outside pubescent, inside sericeous |
| Size of petals | 1.5–3 × 1.5–2 cm | 1.5–2 × 1.2–2 cm |
| Indumentum of petals | glabrous on both surfaces | outside pubescent |
| Ovary | 3-loculed, densely tomentum | 3-loculed, densely tomentum |
| Style | 1.6–2 cm long, pubescent almost the entire length | ca. 1 cm long, glabrous or base pubescent |
| Shape of fruit | globose | triangular oblate |
| Size of fruit | 3–4 cm in diam. | 2–3 cm in diam. |
| Thickness of pericarp | 2–3 mm | ≤1 mm |
» Distribution
Endemic to northern Guangxi, China
» Description
狭叶茶Camellia angustifolia Chang, sp. nov. 张宏达，1981.
《山茶属植物的系统研究》第119页。【标本】广西：大瑶山，1958年7月9日，李荫昆400644(模式模本Typus! in Bot. Inst.
Austro-Sin.)。【形态特征】灌木，嫩枝极秃净，老枝灰褐色。叶革质，披针形，长7-11厘米，宽1.8-2.8厘米，先端渐尖，尖头略楔，基部钝形，上面干后灰褐色，暗晦，无毛，下面浅褐色，无毛，侧脉6-8对，在上下两面均隐约可见，网脉不明显，边缘有细锯齿，齿刻相隔1.5-2毫米，叶柄长5-8毫米，无毛。花未见。蒴果圆球形，直径2.5厘米（未成熟），被长粗毛，3室，果皮厚4-5毫米；宿存萼片5片，近圆形，长6-9毫米，宽6-11毫米，先端圆，背面无毛；果柄长1厘米，中部有2个苞片遗下的环痕。
描述 (中文翻译自Deng H.Q et al. 2025): 常绿乔木，高10–20米。新生枝条无毛，顶芽稀疏至密被绒毛。叶柄长5–10毫米，无毛；叶片披针形，长椭圆至椭圆形，7–13 × 2–5厘米，革质，背面黄绿色，无毛或近无毛，正面深绿色，无毛，有光泽，中脉及侧脉背面隆起，正面凹陷，侧脉10–13对，基部楔形，顶端渐尖，边缘有细锯齿。花叶腋生，单生或成对，直径4–5厘米。花梗长6–12毫米，无毛。苞片2（–3），早落。萼片5，宿存，近圆形，5–9 × 5–10毫米，背面无毛，正面丝状，边缘具睫毛。花瓣7–8，1–2轮，白色，椭圆形至倒卵形，15–30 × 15–20毫米，正反面无毛，顶端钝至圆，内侧4–5片花瓣基部相连，并与雄蕊管底部连合3–4毫米。雄蕊众多，长18–22毫米，分2–3轮排列；花丝无毛，外轮花丝基部连合3–5毫米，最内轮花丝自由。子房3室，球形至卵形，密被毛茸。花柱1，长16–20毫米，几乎全长被毛，顶端3裂，裂长3–5毫米。蒴果球形，直径3–4厘米，3室，每室1–2颗种子；果皮厚2–3毫米。种子褐色，球形，直径约1.5厘米，无毛。
物候 开花期9–10月，结果期8–9月。
» Distribution
广西北部特有种
Species in the Same Section: 丹寨秃茶 Camellia danzaiensis Hung T.Chang & K.M.Lan、防城茶 Camellia fangchengensis S.Ye Liang & Y.C.Zhong、秃房茶 Camellia gymnogyna Hung T.Chang、滇缅茶 Camellia irrawadiensis P.K.Barua、广西茶 Camellia kwangsiensis Hung T. Chang、膜叶茶 Camellia leptophylla S.Ye Liang ex Hung T.Chang、马关茶 Camellia makuanica Hung T.Chang, Y.J.Tan & P.S.Wang、细萼茶 Camellia parvisepala Hung T. Chang、毛叶茶 Camellia ptilophylla Hung T.Chang、汝城毛叶茶 Camellia pubescens Hung T.Chang & C.X.Ye、大叶茶 Camellia sinensis (L.) Kuntze var. assamica (Choisy) Kitamura、茶 Camellia sinensis var. sinensis、大厂茶 Camellia tachangensis F.S.Zhang、大理茶 Camellia taliensis (W.W.Sm.) Melch.、五室茶 Camellia quinquelocularis Hung T.Chang & S.Ye Liang、厚轴茶 Camellia crassicolumna Hung T. Chang、五柱茶 Camellia pentastyla Hung T.Chang、皱叶茶 Camellia crispula Hung T. Chang、突肋茶 Camellia costata S.Y.Hu & S.Y.Liang、榕江茶 Camellia yungkiangensis Hung T. Chang、白毛茶 Camellia sinensis var. pubilimba Hung T.Chang、麻豆茶 Camellia sinensis var. madoensis T.V.Nguyen, V.D.Luong & N.Trieu Le、细枝茶 Camellia tenuistipa Orel, Curry & Luu、大苞茶 Camellia grandibracteata Hung T.Chang, Y.J.Tan, F.L.Yu & P.S.Wang、广南茶 Camellia kwangnanica Hung T.Chang, H.S.Wang & B.H.Chen、疏齿大厂茶 Camellia tachangensis var. remotiserrata (Hung T.Chang, F.L.Yu & P.S.Wang) T.L.Ming、西里茶 Camellia sealyana T.L.Ming、多瓣茶 Camellia crispula var. multiplex (Hung T.Chang, Y.J.Tan & P.S.Wang) S.X.Yang、德宏茶 Camellia sinensis var. dehungensis (Hung T.Chang, H.S.Wang & B.H.Chen) T.L.Ming、锡安山茶 Camellia siangensis T.K.Paul & M.P.Nayar、台湾山茶 Camellia formosensis (Masam. & S.Suzuki) M.H.Su, C.F.Hsieh & C.H.Tsou、三萼茶 Camellia yangii D.Wei Zhao
