Radermachera
Content
Description
Trees, rarely shrubs, evergreen (except 2 Indian and 2 Chinese spp.).
Leaves 2-3-pinnate;
Flowers white, pink with yellow streaks in mouth, more rarely greenish yellow, or golden yellow to orange-red.
Stamens didynamous with a 5th rudiment, but in one Chinese sp. 5 equal stamens, not exserted;
Ovary elongate often minutely lepidote, glabrous, or tuberculate, never hairy;
Capsule linear, terete, up to 75 cm;
Seeds very, flat, small, narrow, on both ends with a hyaline wing.
Distribution
Asia-Temperate: Hainan (Hainan present), Asia-Tropical: New Guinea absent, Deccan present, Indo-Malesia present, Moluccas proper absent, S. China present, Southern America: Argentina Northeast (Formosa present), Tropical SE. Asia present, southern Ryu Kyus present
About 15 spp. in Indo-Malesia, from the Deccan to S. China, Hainan, Formosa, and the southern Ryu Kyus, most abundant in tropical SE. Asia; throughout Malesia, but not in the Moluccas proper and New Guinea. .
Notes
Specific delimitation, especially in Malesian material, proved difficult, as several species appear to be variable and many were only known from the type, notably in the Philippine Islands. Degree of pinnation is variable, often in one collection. Also the number and place of the larger glands on under-surface of leaflets and on the calyx is liable to variation, as well as the flower colour and the way in which the calyx splits. A critical scrutiny showed only few tangible characters and resulted into a severe reduction of species in Malesia.
Citation
SANTISUK 1974 – In: Thai For. Bull. Bot.: 27
K. & V. 1894 – In: Bijdr. Booms.: 71
STEEN. 1976 – In: Blumea: 121
Miq. 1867: – Ann. Mus. Bot. Lugd.-Bat. 3: 250
BUREAU 1861: p. 192. – In: Adansonia: t. 2
Clarke 1884 – In: Fl. Br. Ind.: 383
JACKSON 1895 – In: Ind. Kew.: 679
KURZ 1877 – In: Fl. Burma: 232
STEEN. 1927: Thesis: 953
ZOLL. & MOR. 1928 – In: Bull. Jard. Bot. Btzg: 238
DOP 1930 – In: Fl. Gén. I.-C.: 583
Clarke 1884 – In: Fl. Br. Ind.: 383
SEEM. 1870 – In: J. Bot.: 145
K. & V. 1894 – In: Bijdr. Booms.: 71
ZOLL. & MOR. 1864: Mon: 50: t. 28
CHATTERJEE 1948 – In: Bull. Bot. Soc. Beng.: 71