Plectrantlms .] 
LABIATiE. 
259 
2. P. rotundifolius, Spreng. ; Benth in DC. Prod, x.ii 65. Stems 
erect from a creeping rootstock, glabrous or nearly so. Leaves petioled, 
round-ovate, glabrous, turning black when dried, rounded or cuneate at 
the base. Whorls close, lax, many-flowered. Calyx cainpanulate, pilose ; 
upper tooth broad, oblong; side ones truncate; lowest broad ovate, 
subconnate, cuspidate. Corolla 3 times as long as the calyx, blue; 
throat scarcely inflated. Stamens included. Coleus rugosus, Benth. in 
W %tl. PI. Asiat. Bar. ii. 15. Germanea rotundifolia, Poir. Diet. ii. 763. 
Mauritius, gathered by Commersoii, not seen recently. Also perhaps East 
Indian. 
# Hyptis suaveolens, Poit. ; Benth in DC. Prod. xii. 126, (Ballota 
suaveolens, Linn. ; Jacg. Hort. Vind. t. 42), a native of Tropical 
America, now widely spread in the Old World, is naturalised in Mau- 
ritius near Port Louis. It is a robust herb, with square stems densely 
clothed with firm grey hairs, leaves round-cordate irregularly repand- 
crenate, flowers in copious lax panicles, calyx-tube |—a in. long 
funnel-shaped with 10 strong ribs, teeth 5 equal subulate, corolla with 
a cylindrical tube twice as long as that of the calyx blue with a white 
throat hairy within, lobes short, four upper flat, lowest saccate abruptly 
deflexed. H. pectinata, Poir., is given by Dupont as a plant introduced 
in Mauritius. 
* The large genus Salvia , Linn., marked by its galeate corolla and 
two ascending stamens, of which the connective is deeply forked and 
one branch barren, is represented by S. coccinea , Linn. ; Benth. in 
DC. Prod. xii. 243, a commonly cultivated American species, which is 
established in Rodriguez. It is a branched perennial, with small 
toothed ovate-crenate leaves finely pubescent beneath, scarlet flowers 
in whorls forming a lax terminal raceme, a strongly-ribbed calyx with 
3 deltoid teeth and a corolla about an inch long of which the 
lower lip is deflexed and deeply 3-lobed. 
2. ACHYROSPERMUM, Blume. 
Calyx glabrous ; tube funnel-shaped, indistinctly ribbed ; teeth 5, 
deltoid, subequal. Corolla with a long slender arching tube, much 
longer than the calyx ; upper lip short, oblong, convex ; lower with 3 
deltoid lobes, the lowest deflexed. Stamens 4, didynamous, the longest 
exserted ; anthers 1-2-celled Style shortly bifid. Nucules 4, minute, 
with a coral-like crest. — Herbs or shrubs, with large membranous 
leaves, the flowers in congested racemes with minute bracts. Distrib. 
Tropic^ of the Old World. Species 6. 
1. A. sechellarum, BaTcer. A shrub, 3-5 feet high, glabrous in all 
its parts. Stems square ; main ones tubercled, woody, i-A in. thick. 
Leaves distinctly petioled, oblong, acute, membranous, inciso-crenate, 
cuneate at the base ; largest 6-9 in. long. Racemes short, dense, 
sessile, ascending from the distant nodes, with minute foliaceous 
oblanceolate bracts ; pedicels tery short. Calyx l in. long ; teeth £ as 
s 2 
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