52 acantHace® (Clarke). [ Barleria. 
entire, narrowed to a petiole 11 in. long; inflorescence a terminal 
strobilate spike 3 by & in.; posticous sepal 3—} by 4 in. ovate, acute, 
entire, softly hairy; corolla buff (Galpin) ; tube 3 in. long ; lobes 3 in. 
long; pollen globose, honeycombed , capsule 3 in. long, ovoid, com- 
pressed, beaked, pubescent, 2-seeded. 
KataHari Reeion: Transvaal; among scrub on a hillside at Avoca, near 
Barberton, 1800 ft., Gaitpin, 887! 
This plant, in external appearance, is very like Crossandra nilotica, Oliv. 
19. B. ovata (E. Meyer in Drége, Zwei Pflanzengeogr. Documente, _ 
147, 149, 168); hirsute with tawny hair; branches 3-16 in long ; 
leaves subsessile, ovate or elliptic, entire, in the type-specimen 2} in. 
long, in other examples only half as large; flowers all in the upper 
axils, running into a terminal spike ; posticous sepal 1 by } in., 
elliptic, acute, entire, hairy ; corolla 1} in. in total length; capsule 
4 in. long, ellipsoid, compressed, shining, glabrous, 4-seeded. Nees 
in DC. Prod. xi. 230; ZF. Anders. in Journ. Linn, Soe. vii, 31. 
B. natalensis, Lindau in Engl. Jahrb. xx. 23. 
KaLAnAnlI Recion: Orange River Colony, Cooper, 841! Basutoland; Mont 
aux Sources, 9500 ft., Guthrie, 4889! in the mountains, Thode! ‘Transvaal ; on 
the Saddleback Range, near Barberton, 4000 ft., Galpin, 832! near Lydeuburg, 
Wilms, 1222! Spitzkop Goldmine, Wilms, 1223! Crocodile River, 4800 ft., 
Schlechter, 3899 ! 
EasTERN ReEGt1oN: Pondoland, between Umtata River and St. Johns River, 
1000-2000 ft., Drége! Natal, Camperdown, 1800 ft., Wood, 470! 1986! on a 
hill near Oakford, Wood, 851, 
There may be more than one species here. The variation in the size of the 
leaves is very great. Nees says that the (outer) calyx-segments are spinulose- 
serrate, and Lindau says that in his B. natalensis they are spinescent-toothed ; in 
all the specimens I can find no teeth, far less any spines. Then both Nees and 
Lindau say the flowers are blue. All the dried examples here have flowers, and 
they are all deep blue in the dried state; but, on both his collections, Wilms has 
noted ‘‘ flowers sulphur”; they must have turned from yellow to deep blue in 
drying. Wood has noted “ flowers yellowish-white.” In B, ovata, the hair is soft ; 
in B. natalensis, the hair is stiffer ; other difference I bave found none. 
20. B. obtusa (Nees in Linnwa, xv. 358); hairy; plants 
very variable in size, sometimes only 8 in. high, much branched, 
dense, with no internode so much as + in. long, and no leaf so much 
as $ in. long, at other times with branches 20 in. long, internodes 3 in. 
long and leaves 2 in. long; various intermediate forms occur ; leaves 
ovate or elliptic ; petioles 0-} in. long; flowers 4-1, 1—2 in. apart, in 
loose axillary (usually monopodial) eymes; bracteoles linear 1—} in. 
long, often recurved ; posticous sepal }-1 by 1-1 in., narrowly oblong, 
obtuse, entire, often wider in its upper half, hairy ; corolla 1-12 in. 
in total length, blue ; capsule 2~% in. long, ellipsoid, compressed, 
shining chestnut-coloured, 4-seeded. Mees in DC. Prod. xi, 231, excl. 
var. 6* ; Sonder in Linnea, xxiii. 92; I. Anders. in Journ. Linn. 
vii, 31 evel. syn. B. barbata ; Lindaw in Engl. & Prantl, Pflanzenfam. 
iv. 3B, 314. B, obtusa var, eymulosa, Hochst. in Flora, 1845, 72. 
B. diandra, E. Meyer in Drége, Zwei Pflanzengeogr. Documente, 157, 
