Bartsia.] xcn. scrophulariace^e (hemsley and skan). 45 



Perennials. Corolla various ; seeds longitudinally 

 winged. 

 Herbs. Corolla cylindrical below, then abruptly veu- 

 tricose, nearly equally 5-lobed. 

 Corolla abruptly curved ; stems simple or with a 



few loose branches . . . . . 2. B. Mannii. 



Corolla not abruptly curved; stems relatively 



st<mt; leaves more than 1 in. long . 3. B. abyssinica. 



Si ems slender ; leaves A— | in. long . . .4. B. petitiana. 



Undershrubs. Corolla long, cylindrical throughout; 

 limb distinctly 2-lipped. 

 Corolla-tube straight or nearly so. 



Calyx-lobes shorter than the tube, rounded . 5. B. longiflora. 



Calyx-lobes as long the tube, almost acute . 6. -B. similis. 



Corolla-tube distinctly curved. 



Relat very slender; leaves J— \ in. long . . 7. B. Jcilimandscllarica*. 



Larger in all parts; leaves i— 1 in. long . . 8. B decurva. 



1. B. Trixago, Linn. Sp. PI. ed. i. 602. Annual, somewhat hispid, 

 6-18 in. high. Stems simple or slightly branched in the inflorescence. 

 Leaves sessile, thick but not rigid, spreading, narrow-lanceolate, 1-2J 

 in. long, distantly and coarsely toothed or shallowly pinnatifid ; teeth 

 and tip obtuse ; primary veins 4 or 5 on each side, terminating in the 

 sinuses between the teeth. Inflorescence terminal, usually unbranched, 

 very dense, usually 2-3 but ranging from 1—5 in. long; floral leaves or 

 bracts nearly as long as the flowers. Flowers sessile, yellow, 6-S lin. 

 across. Calyx 3-4 lin. long, densely tomentose, thick ; lobes slightly 

 unequal, very obtuse or rounded, shorter than the tube. Corolla 6-7 

 lin. long ; tube slightly exceeding the calyx ; upper lip galeate, enclosing 

 the slightly bearded anthers; lower lip broad, unequally three-lobed, 

 middle lobe smallest, spreading ; palate longitudinally bigibbous. 

 Filaments glabrous, dilated downwards. Ovary hirsute; style puberu- 

 lous. Seeds very small, reniform, longitudinally ribbed. — -Sibth. & 

 Smith, Fl. Graeca, vi. 68, t. 585. Buchnera africana, Linn. PI. Par. 

 Afr. 13 ; Amcen. Acad. vi. 89. Bellardia Trixago, All. Fl. Pedem. 

 i. 61 ; Hiern in Dyer, Fl. Cap. iv. ii. 419. Trixago apida, Stev. in 

 Mem. Soc. Nat. Mosc. vi. 4; A. Rich. Tent. Fl. Abyss, ii. 134. Bartsia 

 rhinanthoides, Hochst. ex Benth. in DC. Prodr. x. 543. 



Wile Land. Abyssinia : various localities, ScMmper, 839 ! 981 ! 1207 ! 

 Steudner, 791 '. 



Also in the Mediterranean region and South Africa and colonised in several other 

 countries. We think it probable that it was originally introduced into South Africa, 

 inasmuch as we have seen no specimens from the country between that and 

 Abyssinia. 



2. B. Mannii, Ilemsl. Perennial, very rigidly hispid, 2-3 ft. 

 high. Stems simple or branches few, spreading, at length woody ; 

 internodes nearly as long as the leaves. Leaves shortly but distinctly 

 stalked, thick, rigid, spreading, narrowly lanceolate, |— 1J in. long,. 

 floral gradually smaller, obtuse, base rounded ; venation strong, with, 

 about four primary veins on each side ; margin broadly crenate. 



