|
2. Pyrenaria Blume, Bijdr. 1119. 1826.
核果茶属 he guo cha shu
Parapyrenaria Hung T. Chang; Sinopyrenaria Hu; Tutcheria Dunn.
Shrubs or trees, evergreen. Leaves petiolate; leaf blade margin serrate. Flowers axillary, solitary, pedicellate or subsessile. Bracteoles 2 or rarely more, caducous or persistent, sometimes clearly differentiated from sepals. Sepals 5(or 6), imbricate, persistent or caducous, unequal in size, outside pubescent to velutinous, inside brown and glabrous. Petals 5 or rarely more, white or rarely pale yellow, basally slightly connate and adnate to stamens. Stamens numerous, glabrous; outer filament whorl basally slightly connate; anthers dorsifixed, 2-loculed, longitudinally cleft. Ovary superior, (2 or)3-5(or 6)-loculed with 2-5 ovules per locule, placentation axile, tomentose; styles 3-5, distinct or basally connate. Fruit a loculicidal capsule dehiscent from base or drupaceous and indehiscent, usually 2 seeds per locule; pericarp woody or fleshy; columella persistent. Seeds longitudinally compressed, wingless; testa bony, smooth, shiny; hilum linear; endosperm absent; embryo large; cotyledons thin.
About 26 species: China, NE India, Indonesia, Japan (Ryukyu Islands), Malaysia, Myanmar, Philippines, Thailand, Vietnam; 13 species (seven endemic) in China.
|
|
|
|
| 1 |
Ovary 5-loculed; styles 5, distinct; fruit drupaceous, indehiscent, apically 5-lobed |
|
(2) |
| + |
Ovary 3-5(or 6)-loculed; styles connate; fruit a capsule or drupaceous and indehiscent, apically unlobed |
|
(5) |
| |
|
|
|
| 2 (1) |
Flowers subsessile; bracteoles and sepals more than 40, not clearly differentiated. |
|
4 P. oblongicarpa |
| + |
Flowers pedicellate; bracteoles 2 and sepals 5 or 6, clearly differentiated |
|
(3) |
| |
|
|
|
| 3 (2) |
Leaf blade 15-33 × 7-14 cm, base rounded; bracteoles and sepals not leaflike; flowers ca. 7 cm in diam.; fruit globose, 5-8 cm in diam. |
|
1 P. menglaensis |
| + |
Leaf blade 8-16 × 3-6 cm, base cuneate; bracteoles and sepals leaflike; flowers 2-4 cm in diam.; fruit oblate, subglobose, or long obovoid, less than 4 cm in diam |
|
(4) |
| |
|
|
|
| 4 (3) |
Leaf blade oblong to obovate-oblong, papery, yellowish green when dry, secondary veins raised on both surfaces; fruit long obovoid. |
|
2 P. diospyricarpa |
| + |
Leaf blade oblanceolate to oblong-lanceolate, leathery, adaxially yellowish brown when dry, secondary veins adaxially slightly impressed; fruit oblate to subglobose. |
|
3 P. khasiana |
| |
|
|
|
| 5 (1) |
Flowers subsessile (pedicel 3-6 mm in P. kwangsiensis); bracteoles and sepals not clearly differentiated; fruit indehiscent and drupaceous |
|
(6) |
| + |
Flowers distinctly pedicellate; bracteoles and sepals clearly differentiated; fruit a dehiscent capsule |
|
(7) |
| |
|
|
|
| 6 (5) |
Sepals 5; petals 5; ovary and fruit (4 or)5-loculed. |
|
12 P. kwangsiensis |
| + |
Sepals 8-10; petals 8-10; ovary and fruit 3-loculed. |
|
13 P. jonquieriana subsp. multisepala |
| |
|
|
|
| 7 (5) |
Fruit 1-2 cm in diam |
|
(8) |
| + |
Fruit 2-8 cm in diam |
|
(10) |
| |
|
|
|
| 8 (7) |
Flowers 5-6 cm in diam.; pedicel 10-15 mm. |
|
6 P. wuana |
| + |
Flowers 2-4 cm in diam.; pedicel 1-4(-8) mm |
|
(9) |
| |
|
|
|
| 9 (8) |
Flowers ca. 4 cm in diam.; year-old branchlets hirsute; leaf blade adaxially hirtellous along midvein; sepals outside hirsute, apex acute; stamens ca. 10 mm; style hirsute. |
|
9 P. hirta |
| + |
Flowers 2-2.5 cm in diam.; year-old branchlets glabrescent; leaf blade adaxially glabrous; sepals outside sericeous, apex rounded; stamens 6-8 mm; style glabrous. |
|
10 P. microcarpa |
| |
|
|
|
| 10 (7) |
Current year branchlets pubescent or villous |
|
(11) |
| + |
Current year branchlets glabrous |
|
(12) |
| |
|
|
|
| 11 (10) |
Leaf blade 7-12.5 cm; bracteoles alternate, leaflike, oblong, ca. 2.5 cm; sepals 5, broadly ovate, 1-1.5 cm. |
|
5 P. sophiae |
| + |
Leaf blade 16-18 cm; bracteoles opposite, not leaflike, ovate to broadly ovate, 1-1.5 cm; sepals 9-11, suborbicular, 2-3(-4) cm. |
|
7 P. spectabilis |
| |
|
|
|
| 12 (10) |
Current year branchlets rust colored, not maculate; capsule apex convex. |
|
8 P. pingpienensis |
| + |
Current year branchlets grayish white and dark purplish brown maculate; capsule apex abruptly pointed. |
|
11 P. maculatoclada |
|
|
|
List of lower taxa
| Related Links (opens in a new window) |
|
Treatments in Other Floras @ www.efloras.org
Other Databases
|
|
|
|
|
|
|
