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FOC | Family List | FOC Vol. 12 | Theaceae | Camellia

10. Camellia sect. Camellia

山茶组 shan cha zu

Desmitus Rafinesque; Kemelia Rafinesque; Tsubaki Kaempfer ex Adanson; Yunnanea Hu.

Flowers axillary or subterminal, solitary or paired, large, subsessile. Bracteoles and sepals imbricate, caducous or sepals ± persistent after anthesis. Petals red or white, basally connate and strongly adnate to androecium. Stamens numerous; outer filament whorl connate for basal 1/2-3/4. Styles basally connate, apically 3-parted, rarely distinct (only in C. hongkongensis).

Twelve species: China, S Japan, S Korea; 12 species (11 endemic) in China.

1 Bracteoles and sepals caducous after anthesis (± persistent in young fruit in C. polyodonta)   (2)
+ Bracteoles and sepals ± persistent in young fruit   (6)
2 (1) Leaf blade secondary veins adaxially strongly impressed; filaments densely villous   (3)
+ Leaf blade secondary veins adaxially visible or raised, rarely slightly impressed, sometimes obscure; filaments glabrous or subglabrous   (4)
3 (2) Leaf blade margin pectinately serrulate; bracteoles and sepals ca. 15, ± persistent in young fruit.   90 C. polyodonta
+ Leaf blade margin densely apiculately serrulate; bracteoles and sepals 8-10, caducous after anthesis.   91 C. mairei
4 (2) Leaf blade slightly inflexed, 2.5-5.5 × 1-2.2 cm, apex acute to obtuse; flowers ca. 3 cm in diam.; fruit ca. 2.5 cm in diam.   87 C. saluenensis
+ Leaf blade not inflexed, 6.5-14 × 3-6 cm, apex acuminate, caudate, acute, or shortly acuminate and sometimes with an obtuse tip; flowers 4-10 cm in diam.; fruit 3-6 cm in diam   (5)
5 (4) Current year branchlets glabrous; leaf blade abaxially glabrous, apex acuminate to caudate.   88 C. pitardii
+ Current year branchlets pubescent but glabrescent; leaf blade abaxially pubescent at least when young, apex acute to shortly acuminate and with an obtuse tip.   89 C. reticulata
6 (1) Ovary tomentose   (7)
+ Ovary glabrous   (9)
7 (6) Current year branchlets spreading villous; leaf blade ovate, long ovate, or lanceolate, base rounded to cordate; sepal apices acuminate to long acuminate.   86 C. edithae
+ Current year branchlets pubescent or glabrous; leaf blade oblong, oblong-elliptic, elliptic, or oblong-lanceolate, base cuneate, broadly cuneate, or obtuse; sepal apices rounded   (8)
8 (7) Leaf blade 6-12.5 × 2-4 cm, margin entire or obscurely undulate-denticulate; styles 3, distinct; capsule pericarp furfuraceous.   80 C. hongkongensis
+ Leaf blade 9-15 × 4-7(-9) cm, margin entire on basal 1/2 and serrate on apical 1/2; style basally connate and apically 3-5-parted; capsule pericarp smooth.   85 C. semiserrata
9 (6) Leaf blade margin entire, subentire, or sparsely denticulate near apex   (10)
+ Leaf blade margin serrulate   (11)
10 (9) Petiole 6-10(-15) mm; leaf blade apex rounded to emarginate; bracteoles and sepals outside glabrous; style 3(or 4)-parted.   81 C. azalea
+ Petiole 10-18 mm; leaf blade apex acuminate; bracteoles and sepals outside densely pubescent; style 3-5-lobed.   82 C. subintegra
11 (9) Petiole 1-1.5 cm; leaf blade abaxially not glandular punctate, adaxially green becoming yellowish green when dry; bracteoles and sepals brown at anthesis; outer filament whorl basally connate for 0.5-1 cm.   83 C. chekiangoleosa
+ Petiole 0.5-1 cm; leaf blade abaxially brown glandular punctate, adaxially dark green; bracteoles and sepals green at anthesis; outer filament whorl basally connate for 1.5-2.5 cm.   84 C. japonica

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