Prainea
Description
Trees or climbers, dioecious.
Leaves distichous;
stipules free, lateral.
Inflorescences unisexual, solitary or in pairs in the leaf axils, globose- to obovoid-capitate, pedunculate, with peltate, subpeltate, clavate or spathulate interfloral bracts.
stamen 1.
ovary free, stigmas 2.
seed with the testa absorbed except the thickened saucer-shaped basal portion, endosperm absent, embryo straight, longitudinally aligned, cotyledons equal, appressed faces oblique to median plane of ovary, radicle apical, minute;
Distribution
Asia-Tropical, from the Malay Peninsula to New Guinea present
This Malesian genus comprises two closely related species and ranges from the Malay Peninsula to New Guinea.
Morphology
The flowers and bracts of the pistillate inflorescence are free in contrast to those in the related genera Artocarpus, Hullettia, and Parartocarpus.
In both species, only a small number of the pistillate flowers set fruit. Uncinate hairs are present in P. scandens.
In both species, only a small number of the pistillate flowers set fruit. Uncinate hairs are present in P. scandens.
Citation
Go 2000 – In: Tree Fl. Sabah & Sarawak. p 326
Steenis 1932 – In: Bull. Jard. Bot. Buitenzorg. p 259
Boerl. 1900 – In: Handl. Fl. Ned. Ind. p 337
Hook.f. 1923 – In: Webbia. p 563
Kochummen 1978 – In: Tree Fl. Malaya. p 165
Becc. 1902: For. Borneo. p 635
Ridl. 1924 – In: Fl. Malay Penins. p 358
Engl. 1897 – In: Engl. & Prantl, Nat. Pflanzenfam. Nachtr. 1. p 122
F.M. Jarrett 1959 – In: J. Arnold Arbor. 40. p 30
King 1896: p. 162. – In: Ann. Roy. Bot. Gard. (Calcutta). t. 196
C.C. Berg 2005 – In: Blumea. p 545
Corner 1962 – In: Gard. Bull. Singapore 19. p 243