364 xcn. scrophulariace^e (hemsley axd skan). [Alectra. 



Filaments glabrous. 



Stems relatively stout, much-branched from 

 the base; brandies erect; leaves oblong- 

 lanceolate, not acuminate , . . 12. A. Vogelii. 

 Anther-cells apiculate. 



Very hispid ; hairs tuberculate. 



.Stems rigid, erect ; leaves spreading . . 13. A. asperrima. 



Stems rigid, erect; leaves fleshy, adpressed . 14. A. rigida. 

 Stems very short and slender; leaves sessile, 



less than \ in. long . . . . 15. A. virgata. 



Very dwarf, branching from the base : leaves 



more than \ in. long . . . .16.-4. aurantiaca. 



Very hispid ; hairs not tuberculate ; stems long, 



weak; leaves oblong-lanceolate . . . 17. A.trinervis. 



Hairy or slightly hispid. 



Stems usually simple, slender, usually less 

 than a foot high. 

 Leaves lanceolate to orbicular, obscurely 



toothed ...... 18. A. senegalensis. 



Leaves cordate, obscurely toothed . . 19. A. cordata. 



Stems rigid, usually more than a foot high ; 

 leaves coarsely toothed. 

 Stems simple or with few, erect branches ; 



leaves sessile, cordate-ovate, adpressed 20. A. melampyroides. 

 Stems much branched; leaves stalked, 



oblong-lanceolate, spreading . .21. A. communis. 



1. A. atrosanguinea, Hemsl. An annual root-parasite, about 

 7 in. high. Root orange or dark crimson. Stem branched, glabrate, 

 orange, soon turning dark crimson at the base. Leaves few, small, 

 scale-like, rather fleshy, deep crimson. Flowers in terminal spikes. 

 Spikes about 2 in. long, erect ; bracts shorter than the flowers. Calyx 

 broadly campanulate, somewhat hispid, 1 0-nerved, deep crimson, 

 shortly 5-lobed, about \ in. long ; lobes broadly ovate-triangular, 

 apiculate. Corolla nearly rotate, scarcely exceeding the calyx, orange- 

 yellow ; lobes 5, somewhat spreading, obtuse. Stamens inserted at 

 the base of the corolla, nearly equal ; filaments glabrous or (according to 

 Welwitsch) pilose, not densely bearded. — Melasma atrosanguineum, 

 Hiern in Cat. Afr. PI. Welw. i. 769. 



Lower Guinea. Angola : Pungo Andongo ; in thickets between Sansamanda 

 and Caghuy, Wekoitsch, 5853 ! 



This species was founded upon a fragment, which looks different from anything 

 else we have seen. The description is from Hiern. 



2. A. Welwitschii, Hemsl. A parasitic, brown, leafless, puberu- 

 lous, herb like a broomrape. Rhizome thick, fleshy, yellow inside. 

 Stem simple or slightly branched, 4-7 in. high, bearing a few obtuse 

 scales less than \ in. long, and florescent in the upper quarter, orange- 

 purple at the base, dusky purple upwards. Flowers orange, densely 

 crowded, nearly sessile. Bracts oblong, obtuse, shorter than the 

 flowers, Bracteoles subulate, about y 1 ^- in. long. Calyx campanulate, 



