246 
AOANTHAOEjE. 
[Thunlergia. 
Asia, is naturalised in Mauritius in the ravine of the Grand ltiviere. 
It has very slender glabrous or finely pilose stems, short terete 
petioles, ovate or lanceolate acute membranous entire or sinuated 
leaves cordate or hastate at the base, pedicels much longer than the 
petioles flattened after flowering, ovate-oblong bracts in. long, and 
a fragrant pure white flower with a tube as long as the bracts and an 
expanded limb 1|— 2 inches across. 
* BARLERIAj Linn. (. Barreliera , Bojer). 
Calyx divided to the base into 4 segments, the two outer much larger 
than the two inner. Corolla with a long funnel-shaped tube and 5 
nearly equal obovate spreading lobes, of which one forms an upper, 
and four a lower lip. Stamens 4, inserted low down the corolla-tube, 
two with long filaments and oblong equally 2-celled anthers, the two 
others rudimentary. Ovary 2-celled ; cells 2-ovuled ; style long, 
filiform. Capsule oblong or ampullaeform, 2-celled, each cell bearing- 
one or two seeds in the lower half, the retinacula large, uncinate. — 
Tall erect shrubs or perennial herbs, wdth showy flowers. Distrib. 
Tropics, mainly of the Old World. Species 60. 
Spines in axils of the leaves in fours * B. Prionitis. 
Spines in axils of the leaves in pairs * B. lupulina. 
Spines in axils of the leaves none * B. cristata. 
* B. Brionitis , Linn. ; Nees in DC. Prod. xi. 237, common in Tropical 
Asia, is naturalised in Mauritius, Rodriguez, and the Seychelles. It is 
an erect much-branched shrubby perennial, with stalked quaternate 
spreading spines in the axils of the leaves, leaves oblong-spathulate 
acute short-petioled membranous, flowers solitary sessile in the axils 
of the leaves, the upper crowded with leaves much reduced, calyx £ in. 
long, the outer sepals oblong with a spiny point the inner lanceolate, 
corolla funnel-shaped orange-yellow with 5 obovate lobes of which 4 
form the lower lip, capsule ampullaeform exceeding the calyx. 
* B. lupulina , Lindl. Bot. Reg. t. 1483 (B. macrostachya, Bojer, 
Hort. Maur. 260), a native of Madagascar, is now frequent round 
Port Louis. It is a half-shrubby glabrous perennial 3-4 feet high, 
with a pair of spreading spines in the axils of the nearly sessile large 
' linear-lanceolate leaves, the flowers aggregated in terminal spikes 2-3 
in. long, with large round imbricated clasping obtuse bracts with a 
minute mucro, calyx hidden by the bracts, corolla 1\ in. long bright 
yellow with a slender tube and 5 obovate lobes half an inch long and 
an ampullaeform capsule as long as the calyx. 
* B . cristata , Linn. ; Bot. Mag. t. 1615, Wt. Ic. t. 453 (B. dichotoma, 
Roxb.), common in Tropical Asia, is often naturalised in Mauritius 
and Rodriguez, near abandoned habitations. It is a robust half- 
shrubby perennial, clothed with short adpressed hairs, spines none in 
the axils of the petioled oblong-acuminate leaves, flowers in crowded 
cymes in the axils of the leaves, bracts small linear-pectinate, calyx- 
