136 FLORA OF MADRAS. [Impatiens. 



Leaves narrowly linear 26. herbicola. 



Flowers medium-sized, yellow ; standard winged 27. Lawii. 



Lip funnel-shaped ; flowers very small, white : standard-costa 



mucronate 28. Nataliae. 



Lip saccate, spur of lip very short : 



Glabrous or scurfy ; flowers very small ; lip shortly saccate 



29. oppositifolia. 

 Often pubescent ; flowers rose, very small ; lip cymbiform, 



acute; basal lobe of wing almost 30. ' pallidiflora. 



More or less pubescent, flowers medium-sized, lip deeply saccate 



31. tomentosa. 



Sepals ovate or ovate-lanceolate ; seeds various : 

 Leaves opposite, small, sharply serrate, glandular ; spur of lip very 



short, incurved ; seeds glabrous, black, shining 32. concinna. 



Leaves opposite and whorled, usually long-glandular-ciliate ; seeds 



hairy 33. Gardneriana. 



Shrub or herbs ; leaves opposite, alternate or rarely whorled ; flowers 

 pedicelled, the pedicels solitary binate or fascicled in the axils of the 

 leaves, without peduncle; sepals small or minute ; seeds smooth, rugose 

 or papillose (Section 4. MICROSEPALAE) : 



Leaves opposite alternate and whorled on the same plant ; seeds 

 obovoid, rugose or papillose: 



Shrubs, basal lobe of wings smaller than the distal ; spur of the lip 

 short incurved : 



Leaves 1-2 in. long, petiole short; stems reddish 34. Leschenaultii 

 Leaves 2-4 in. long, petiole long ; stems often with sulphury 



covering 35. latifolia. 



Shrubs, basal lobe of wings equalling or larger than the 

 distal : 



Stem and branches glaucous, costa of leaf hairy beneath ; spur of 



lip stout , 36. cuspidata. 



Stem and branches green ; leaves usually glabrous beneath ; spur 

 of lip slender : 



Basal lobe of wings much smaller than the distal 37. floribunda. 

 Basal lobe of wings much larger than the distal 38. macrocarpa. 

 Basal lobe of wings equal to the distal, both obcordate 



39. cochinica. 

 Herb, annual ; lobes of wings subequal ; spur of lip very slender 



40. lucida. 

 Leaves all alternate : 



Flowers minute ; flaccid annuals : 



Leaves ovate ; spur of lip 41. pendula. 



Leaves lanceolate ; spur of lip short 42. mysorensis. 



