156 SCROPHULARIACE3E. [ STEIGA. 



spikes, bracteoles usually 2. Calyx 5-toothed or -fid.; tube with 4 or 5 

 or 15 strong nerves. Corolla 2-lipped ; tube slender, abruptly in- 

 curved at or above the middle ; limb spreading ; upper lip inside 

 in bud, usually short, notched or 2-fid., lower 3-lobed. Stamens 

 didynamous, included ; anthers 1-celled, vertical, dorsifixed, bases 

 obtuse, connective sometimes mucronate. Ovary 2-celled, style 

 thickened upwards, stigma simple. Fruit an oblong or stibglobose 

 capsule ; valves entire, septiferous, separating from the placentas. 

 Seeds many, reticulated. Species about 34, in the warmer parts of 

 Asia, Africa and Australia. 



Calyx 4-5-ribbed, with one rib running to 

 the apex of each calyx-tooth : 



A reddish-brow Q root-parasite with tuberous 



rootstock, leaves scale-like, corolla pink . 1. 8. orobanchoides. 

 A green non-parasitic plant, rootstock not 



tuberous, leaves linear, corolla white . 2. 8. densiflora. 



Calyx 10-15-ribbed:- 



Eibs f calyx usually 10, the secondary ones 

 terminating in the sinus, corolla yellow . 3. 8. lutea. 



Eibs of calyx 15, the secondary ones con- 

 tinued up the sides of adjacent calyx-teeth 

 and beyond the sinus, corolla white . . 4. 8. enphrasioides. 



1. S. orobanchoides Benth. in Hook. Covnp. Hot. Mag. i, 361, 1. 19 ; 

 F.B.I, iv, 299 ; Cooke Fl. Bomb, ii, 302. Buchnera orobaachoides, R. Br.: 

 Royle III. 291. 



A small glabrous or puberulous herb, 6-10 in. high, usually parasitic ; 

 rootstock tuberous. 8tems stout or slender, simple or branched, 

 Leaves scale-like, ovate-oblong, acute, reddish-brown as are the stems, 

 passing gradually into floral bracts. Flowers sessile, arranged in erect 

 usually dense spikes ; bracts shorter than the calyx, ovate-lanceolate, 

 acute ; bracteoles narrower, ciliolate. Calyx 5- or 4-ribbed, less than 

 in. long; teeth 5 or 4. shorter than the tube, lanceolate, acuminate 

 and tipped with a bristle. Corolla usually pink with a white spot at 

 the base of each lobe ; tube about | in. long, incurved above the middle, 

 hairy in the throat ; limb about ia. across. Capsule about in. long, 

 oblong-ellipsoid. 



Dehra Dun (Royle), Aj mere, parasitical on the roots of Lepidagathis 

 Hamiltoniana (Duthie). Flowers in Oct. DISTBIB.: Rajputana, on 

 Mt. Abu, Sind, Konkaa, Deccan, Gujarat to S. India and Ceylon ; also 

 in Arabia, Soootra, Cape de Verde Islands, and in Trop. and S. Africa. 

 Trimen says that in Ceylon the plant is sometimes green, and then the 

 flowers are white. 



2. S. densiflora, Benth. in Hook. Comp. Bot. Mag. i, 363 ; F.B.I, iv, 

 299 ; Prain Beng. PI. 775 ; Cooke Fl. Bomb, ii, 303. 



