LABIATZE. XXII. Corzznooxia. 
Shrub. 
For culture and propagation see Eriope, p. 708. 
Shrubby Tetradenia. 
Cult. 
XXII. COLEBROO'KIA (named in honour of Henry 
Thomas Colebrooke, F.R.S., F.L.S., &c., an accomplished 
botanist.) Smith, exot. bot. 2. p. 111. Benth. lab. p. 165. 
Lin. syst. Didyndinia, Gymnospérmia. Calyx campanu- 
late, equal, 5~parted, plumose, pappous at maturity, adhering 
to the achenia. Corolla with the tube equalling the calyx: the 
limb very short, nearly equal, 4-cleft: upper lobe emarginate. 
Stamens 4, equal, distant ; filaments very short; anthers nearly 
sessile, 2-celled : cells parallel. Disc of ovarium equal, gland- 
less. Style deeply bifid: lobes subulate, stigmatiferous in the 
upper part.—Shrubs, densely clothed with whitish or subrufous 
woolly tomentum. Leaves petiolate, 4-6 inches long, oblong- 
elliptie, crenulated ; lower floral leaves similar, but smaller: 
upper ones bractea-formed, imbricate before florescence. Spike- 
lets 1-3 inches long, pedunculate, panicled. ^ Cymes of whorls 
distinct, head-formed, dense, sessile, involucrated by bracteas 
which are connate at the base. Flowers small, white. Corolla 
tubular, contracted in the middle. 
1 C. orrosmiróLrA (Smith, 
exot., bot. 2. p. 111. t. 115.) 
branches, leaves, and spikes 
FIG. 75. 
opposite. k. S. Native of 
Nipaul and Kamaon. Els- 
hóltzia — oppositifólia, Poir. 
suppl. 5. p.663. (fig. 75.) 
Opposite-leaved Colebrookia. 
Fl? Cit. 1820. Shrub 3 to 
4 feet. 
2 C. TERNIFOLIA (Roxb. co- 
rom. 3. p. 40. t. 245.) branches, 
leaves, and spikes, 3 in a whorl. 
h.S. Native of the East In- 
dies, among the Carnatic moun- 
tains, Roxb. Leaves more to- 
mentose, and on shorter peti- 
oles than the first species, and 
the spikelets are more dense. 
Tern-leaved Colebrookia. 
Cult. 
Clt. 1823. Shrub 3 to 4 feet. 
For culture and propagation see Eriope, p. 708. 
XXIII. PERILLA (meaning unknown to us.) Lin. gen. 
578. Benth. lab. p. 166. 
Lis. syst. JDidynàmia, Gymnospérmia. Calyx campanulate, 
nearly equal at the time of florescence, 5-cleft, nutant after 
florescence, and bilabiate: upper lip dilated, trifid: middle 
tooth the smallest: lower lip bifid; throat naked inside. Co- 
rolla almost equalling the calyx, nearly equal; limb shortly 5- 
cleft. Stamens 4, nearly equal, distant, erect, equalling the 
corolla; anthers 2-celled: cells parallel, at length diverging, or 
sub-divaricate. Style deeply bifid; stigmas terminal. Achenia 
dry, smooth.—An herb, with the inflorescence almost of the 
genus Moschósma, and with the flowers disposed in axillary and 
terminal secund spikes. 
1 P. ocvwolpzs (Lin. gen. 578. Sims, bot. mag. 2395.) ©. 
H. Native of Silhet, Kamaon, Nipaul, and Ava. O’cymum 
frutéscens, Lin. spec. p. 832. Melissa máxima, Arduin. spec. 
9. p. 28. t. 13. Méntha perilloides, Lam. dict. 4. p. 112. but 
not of Lin. Stem pilose, bluntly tetragonal. Leaves petiolate, 
2-4 inches long, ovate, acuminated, coarsely serrated, cuneated 
at the base, or narrowed into the petioles, green on both sur- 
XXIII. Perma. 
XXIV. IsaxrHus, XXV. Presta. 415 
faces, pilose on the veins. Racemes shorter than the leaves. 
Corolla minute, white. 
Basil-like Perilla. FI. July, Aug. Clt. 1770. Pl. 1 to 8 
feet. 
Cult. Sow the seeds in the open ground, where the plant 
will thrive without any further care. 
XXIV. ISA'NTHUS (from :s0c, isos, equal; and a»0or, 
anthos, a flower; in allusion to the corolla being regular, not 
bilabiate.) Michx. fl. bor. amer. 2. p. 3. Benth. lab. p. 166. 
Lin. syst. Didynamia, Gymnospérmia. Calyx campanulate, 
equal, 10-nerved, deeply 5-toothed ; throat naked inside. Co- 
rolla hardly exceeding the calyx, with a short, straight tube, 
and a campanulate limb: lobes 5, equal, roundish, spreading. 
Stamens 4, nearly equal, distant, erect, about equal in length to 
the corolla ; anthers 2-celled : cells parallel, or at length diverg- 
ing. Style shortly bifid at apex: lobes subulate; stigmas 
terminal. Achenia dry, obovate, reticulated, lacunosely wrink- 
led.—A herb with the habit and inflorescence of Saturèia 
horténsis. 
1 I.cxRu'rEus (Miehx. fl. bor. amer. 2. p. 4. t. 30.) ©. 
H. Native of North America, in Pennsylvania, Maryland, and 
Virginia, Nutt. ; Carolina and Kentucky, Michx. ; at St. Louis, 
Drummond. Trichostéma brachiàta, Lin. spec. 834. Plant erect, 
branched, rather viseid ; branches pubescent, or pilose. Leaves 
on short petioles, oblong-elliptie, narrowed at both ends, with 
quite entire, or sub-sinuated edges, 3-nerved, green on both 
surfaces, glabrous, but usually pubescent, or pilose. Peduncles 
solitary, axillary, 1-flowered, shorter than the leaves, usually 
bibracteate under the calyx. Corollas like those of Méntka, 
pale blue. 
Blue-flowered Isanthus. Fl. July, Aug. Clt. 1818. Pl. § 
to 1 foot. 
Cult. The seeds should be sown in spring in ‘a peat border, 
where the plants will flower and produce seed if the summer 
prove warm. 
XXV. PRE'SLIA (named in honour of C. B. and J. S. Presl. 
of Prague, brothers; authors of “ Flora Sicula, Dilicize Pragen- 
sis, &c.") Opiz. in bot. zeit. 1824. 1. p. 322. Benth. lab. p. 
167. but not of Mart. 
Lin. syst. Didynàmia, Gymnospérmia. Calyx ovate, equal, 
4-toothed ; teeth awned; throat rather villous inside. Corolla 
equal, with an inclosed tube, and a 4-parted limb ; lobes equal, 
entire. Stamens 4, equal, distant, erect; filaments glabrous; 
anthers 2-celled : cells parallel. Style bifid at top; lobes nearly 
equal, bearing the stigmas at apex. Achenia oblong, smooth, 
dry.—A bog herb, with the habit of Saturéia, and the inflores- 
cence of Méntha verticillàta. 
1 P. Cervr'na (Fresen. in syll. pl. soc. ratisb. 2. p. 238.) 
à. H. Native of Middle and South Europe, in bogs and 
ditches; as of the South of France, Spain, and Portugal. Méntha 
cervina, Lin. spec. 807. Méntha punctàta, Mcench. Pulégium 
cervinum, Mill. dict. no. 3.  Pulégium angustifolium, Riv. 
mon. irr. t. 23. f. 2. Préslia glabriflóra, Opiz, in bot. zeit. 
1824. 1. p. 323.  Préslia villiflóra, Opiz,l. c. Herb prostrate, 
glabrous. Leaves sessile, linear, or linear-lanceolate, obtuse, 
quite entire, green on both surfaces, dotted, somewhat fascicled 
in the axils. Whorls many-flowered, dense, distant, rather 
shorter than the floral leaves. Corollas pale purplish, about 
twice as long as the calyxes. 
Stag Preslia. Fl. June, Aug. Clt. 1684. Pl. prostrate. 
‘ult. "This plant will grow freely in most soils, and is readily 
noe by division. It requires a little protection in severe 
rost. 
AY 
