Flora of the Malayan Peninsula. 



661 



species) terminal, sometimes of several elongate branches ; branches 

 linear, with very small lateral cymes, or reduced to spikes ; bracts 

 linear, very small ; prophylla hardly any. Calyx small, less than -2 in. 

 long, divided deeply into 5 linear segments, pubescent or puberulous. 

 Corolla -5 to 1 in. long ; tube narrow ; limb 2-lipped. Stamens 2 ; 

 anther-cells 2, oblong, parallel, at equal height, muticous ; pollen 

 small, short-ellipsoid, longitudinally (often obscurely) ribbed. Ovary 

 conic, many-ovulate, nearly glabrous ; style at tip shortly 2-fid. 

 Capsule -5 to 1 in. long, linear, glabrate, with parallel sides, 8- to 20- 

 seeded from the base. Seeds ovoid, flattened, obscurely hairy. Species 

 25 to 30, in South-east Asia, North Australia, Polynesia, 



This genus, varying in size, is distinguished by the linear (not clavate) many- 

 seeded capsule. The small-sized group, Gymnostachyum proper, has (a) the flowers 

 clustered or opposite (b) the flowers, solitary, alternate ; but of the group (a) there 

 is no example from the Malay Peninsula. 



Stems 1 to 4 in. long. Flowers solitary in long spikes : — 

 Spikes linear, simple. Corolla blue, toward the base 

 whitish : — 

 Leaves suddenly narrowed on the winged petiole 

 Leaves spathulate on the petiole : — 

 CoroUa -75 in. long or more . . 

 Spikes linear, somewhat branched ; corolla white 

 Stem elongate ; panicle with many long, linear branches . . 

 Stems 1 to 3 ft. long ; inflorescence terminal ; bracts 

 minute ; stamens, pollen, and style as of Gymnostachyum ; 

 but the capsule is not known in any of the following 

 species : — 

 Panicle 2 to 3 in. long, short-peduncled ; flowers 8 to 20 : — 

 Spike slender, linear ; style hairy 

 Spike denser ; style glabrous : — 

 Leaves with 5 to 6 pairs of nerves 

 Leaves with 9 to 11 pairs of nerves 

 Panicle 8 in. long, usually branched :— 

 Leaves not exceeding 2"5 in. in breadth : — 

 Leaves thick, attenuate at either end . . 

 Leaves elliptic, shortly acuminate : — 

 Panicle with long branches 

 Panicle linear, with sliort lateral cymes 

 Leaves 6 in. wide 



1. G. decurrens. 



G. diver sifolium. 

 G. palletis. 

 G. polyneuron. 



5. 



G. 



simplieicaule. 



6. 



G. 



hirtistylnm. 



7. 



G. 



magis-nervatum. 



8. 



G. 



knoxii folium. 



9. 



G. 



? Scortechinii. 



10. 



G. 



Ridleyi. 



11. 



G. 



? magnuvi. 



1. Gymnostachyum decueeens, Stapf in Kew Bull. 357 (1894). 

 Stem 1 to 4 in. high. Leaves up to 5 by 3 in., pubescent beneath, 

 ovate ; tip triangular ; margin undulate ; nerves 6 pairs, the lowest 

 patent ; base suddenly narrowed, often decurrent on the petiole. Spikes 



