1900. D. Prain — A list of the Asiatic species of Or mania. 177 



Leaf-raohis prolonged beyond the distal pftir of leaflets to support the termi- 

 nal one ; Sect. Ormosia proper. 



Pods with thickly woody valves not septate between the large seeds 



which are usually solitary ; Sub-sect. Macrodisca. 

 Pods with thickly woody valves septate between the small seeds which 



are usually several ; Sub-sect. Layia. 

 Pods with thinly woody valves and usually solitary always small seeds ; 

 Sub-sect. Amacrotropis. 

 Pod with fleshy valves; seeds black, enveloped in a fleshy arillns ; Sub-gen. 

 Arillaria. 



The Asiatic species of which sufficiently complete material has 

 been reported should be distributed as follows among these groups : — 



I. TOULICHIBA. 



1. Chjinolobium. 0. pachycarpa y 0. venosa, 0. decemjuga, 0. sep- 



t em jug a, 0. polita. 



2. Ormosia proper. 



(a) Macrodisca. 0. macrodisca, 0. gracilis, 0. travancorica. 



(b) Layia. 0. emarginatrr, 0. Henryi, 0. inopinata, 0. lasea, 



0. glauca, 0. Balansae. 



(c) Amacrotropis. 0. microsperma, 0. parvifolia, O. sumatrana, 



0. yunnanensis. 



II. Arillaria. 0. robusta. 



The other species given iu the subjoined key, which is more or less 

 artificial, at all events in detail, are species of which the fruit is not 

 yet known. In the account of Ormosia given in the Society's Journal, 

 1897, a previously undescribed species was there named 0. nitida. 

 There is however, a prior 0. nitida Vogel, 1 which stands good; it has 

 therefore been necessary to rename the Malayan species. 



Key to the Asiatic species of Ormosia. 



Erect trees : — 



Pod with fleshy valves ; seeds with complete ariHns ; 



leaflets glabrous beneath ... ... .... 1. robusta. 



Pod with woody valves : — 



Seeds with a black adnate basal arillus, leaves minutely 

 sparsely pubescent underneath : — 

 Panicles fastigiate, flowers white; pod 8 cm. wide ; 



seed 2*5 cm. loug ... ... ... 2. macrodisca. 



Panicles lax, flowers yellow ; pod 3 cm. wide ; seed 



2 cm, long ... ... ... ... 3. gracilis. 



i Linnsea, xi. 405 (1837). 

 J. ii. 23 



