562 



THE ORCHIDS OF THE BOMBAY PRESIDENCY. 



BY 



G. A. Gammie, f.l.s. 

 Part II., (With Plate I.) 

 (Continued from page 433 of this Volume.) 

 The first step towards tli9 identification of an orchid is to refer it to 

 its tribe, and the second is to find out the genus to which it belongs. 



It is usual to subdivide these tribes again into subtribes, but as the 

 number of genera represented in Bombay is small and as such a com- 

 plexity of detail would probably repel a learner, it will suffice to discuss 

 the genera under tribes only. 



The first tribe Epndendrece, is well represented, and the genera com- 

 prised within it may be shortly summarized as follows : — 

 * Pollinia 4, not appendaged. 



1. Oberonia. — Small tufted epiphytes with thick two-ranked leaves. 

 Flowers minute, in very dense round spikes like rats' tails. 



2. Microstylis. — Terrestrial. Leaves rather broad and thin. 

 Flowers small, reversed, lip fan-shaped. 



3. Liparis. — Terrestrial. Raceme stout or slender, lip broadly and 

 inversely heart-shaped. 



4. Dendrobium. — Containing plants of varying habit and best dis- 

 cussed under sections. 



Section I. — Cadetia. Stems branched, pendulous, bearing a series of 

 single-leaved pseudobulbs and small white flowers in clusters of 2 or 3. 

 Section II. — Stachyobium. 



(a) Small plants with crowded, ovoid pseudobulbs, flowers small, in 

 racemes. 



(b) Larger plants with long, cylindrical, leafy stems, floivers larger 

 and more numerous in the racemes. 



(c) Stems slender, excessively branched, flowers small, white. 

 Section III. — Eudendrobium. Stems tufted ; flowers pink or yellow 



in short racemes or in pairs from the joints of the leafless stems. 



5. Bulbophyllum. — Epiphyte. Rhizome creeping, bearing one- 

 leaved, ovoid pseudobulbs, racemes moderately dense, flower yellow 

 with brown lip. % 



6. Cirrhopetalum. — Epiphyte. Rhizome bearing, globose, one- 

 leaved pseudobulbs, floivers radiating in an umbel, lateral sepals very 

 long. 



