ORCHIDACE^. 399 



, r Petals divided, one or both halves hair-like . . . . c 

 \ Petals not divided : lip three-lobed or partite . . . . d 

 f Flowers one or two only. Spur 2 inches. Lip of three 

 I slender parts p. 400. H. rariflora. 



c \ Flowers many in a spike. Spur J^ inch. Hair-like seg- 

 I ments of petals curling up. pp. 399, 400. H. foliosa and 

 [ H. travancorica. 



J r Side lobes of lip broader than the middle lobe . . . e 

 I Side lobes of lip not broader than the middle lobe . . f 

 f Flowers many, under i inch : lateral lobes of lip Y% i^^h 



J or less ^ 401. H. cephalotes. 



j Flowers one or two only : spur 3 to 4 inches .... 

 [ /^. 401. H. longicalcarata. 



- r Flowers all facing one way : bracts embracing the flowers, g 



\ Flowers spirally arranged . . h 



r Leaves ovate i to i 1/2 inches . . /. 403. H. heyneana. 



^ \ Leaves linear 2 to 2 1/2 inches. . /. 403. H. subpubens. 

 \ Leaves two only, flat on the ground, thick 



1 j /. 404- H. crassifolia. 



i Leaves several, on the stem, flowers J^ inch greenish 



[ white /. 402. H. elliptica. 



[ Lateral petals each with a filiform segment curling up 



. J (like a pair of horns) . . . . p. 404. H. bicornuta. 

 '1 Petals entire : lip notched or cuspidate one spotted pink 

 1^ or purple p. 405. H. obcordata. 



Habcnaria foliosa A. Rich.; F.B.I, vi 135, as variety 

 foliosa of H. digitata Lindl. ; CVI 7.* Characterised by 

 having tw^o pairs of filiform segments of petals curling 

 upwards like horns. 



Tuber % inch. Stem 6 to 10 inches, clothed at the 

 base only with sheaths, above leafy. Leaves I to 2 inches, 

 elliptic-ovate, acute, stem-clasping ; upper smaller 

 merging into the bracts. Flowers dirty white, in a 

 dense spike 2 to 4 inches long. Bracts ^ inch, ovate- 

 acute, slightly longer than the ovary. Sepals J4 inch ; 

 lateral pair ovate-acute, curved spreading ; dorsal sepal 

 round. Petals each divided into two filiform segments 

 curved upwards like horns. Lips deeply three-fid into 

 narrow hair-like segments, the middle one longest. 



