﻿Bopiisia.] scEOPHUiARiAOE^ (Hiern). 391 



Magalies Berff, BurJce I Woodbush (Houtbosch) Mountains, Barler, 8 ! Barberton 

 Galpm, 444 ! near Lydenburg, Wilms, lal9 ! and without precise locality,' 

 Zeyher, 1312 ! 1313 1 r j » 



XLI. BTTCHNERA, Linn. 



Cali/x tubular, 8-10-nerved, 4- or 6-dentate ; tube cylindrical, 

 narrow, usually 5-10-ribbed; teeth short, acute. Coro/la-iube 

 slender, straight or gently incurved ; limb spreading ; lobes 4 or 5 

 or rarely 6, obtuse, entire, not very unequal, flat, the two posterior 

 interior. Stamens 4, didynamous, included, inserted about the 

 middle of the corolla-tube, all perfect and nearly equal ; anthers 

 1 -celled, erect, dorsifixed, acute, blunt at the base. Ovary 2-cellcd; 

 ovules numerous ; style straight, included, thickened or clavate at 

 the stigraatic apex, entire or emarginate. Capsule oblong, loculicidal ; 

 Valves coriaceous, entire. tSeeds numerous, obovoid, or oblong ; 

 testa tight, reticulate. 



Rather rigid herbs, usually somen'hat scabrid, turning dusky in drying, 

 probably parasitical ; leaves green in the living state, opposite or quasi-verti- 

 oillate, or the upper alternate, the lowest usually obovate, entire or dentate, the 

 upper narrow, entire or denticuhite, the floral reduced to bracts ; flowers sessile 

 or subsessile in the axils of the upper leaves or bracts, bibracteolate, forming 

 spikes terminating the stem and branches, blue, purple or white, usually small 

 and numerous. 



DiSTRiB. Species about 75, dispersed over the hotter parts of the world. 



Calyx-tube glabrous outside or nearly so ; flowers 

 A-f iu. long : 



Corolla-tube more or less pilose outside : 



Bracts -i-i in. long; bracteoles J^-i in, 

 long J flowers deep purple or pale 



lilac (1) dura. 



Bracts -^-^ in. long ; bracteoles jL-tV ">• 



long; flowers blue (2) brevibractealis. , 



Corolla-tube glabrous outside or nearly so ... (3) glabrata. 

 Calyx-tube hispidulous outside ; flowers l-\ in. 

 long ... ("*) reducta. 



1. B. dura (Benth. in Hook. Comp. Bot. Mag. i. 366) ; an erect 

 or suberect herb, hispidulous or nearly glabrous, somewhat scabrid, 

 1-2 ft. high, simple or branched, rigid, apparently annual, turning 

 black in drying ; stems firm, rather slender, obtusely quadrangular 

 or near the base subterete, furrowed above, somewhat woody at the 

 base, leafy ; branches ascending or suberect ; leaves opposite or the 

 upper alternate, obovate, oblanceolate or sublinear, rounded or obtuse, 

 attenuate or somewhat narrowed at the base, sessile or subpetidate, 

 entire, firmly herbaceous, hispidulous-scabrid, -^~2i m. long, 

 tV-I in. broad, the lower the broader and 3-nerved ; flowers 

 spicate, numerous, deep purple or pale lilac, about ^ m. long; 

 Bpikes elongating, narrow, dense above, at length lax and interrupted 

 below, not markedly tetragonal, 1-7 in. long; pedicels very short ; 

 liract ovate, concave, acute, clasping the calyx, ciliate, otherwise 



