686 
leaves under the divisions. Flowers secund, lilac, Plant with 
a sweet odour. 
Smeet-scented CEollanthus. Fl. July, Aug. Clt. 1825. PI. 
1 foot. 
Cult. For culture and propagation see O'cymum, p. 674. 
XII. PYCHNO'STACHYS (from cvxvoc, pychnos, dense ; 
aed eraxve, stachys, a spike; in allusion to the spikes being 
dense-flowered.) Hook. exot. fl. 2. t. 202. Benth. lab. 
p. 61. 
Lin. syst. Didynamia, Gymnospérmia. Calyx ovate, nearly 
equal, with 5 subulately-spinose teeth. Corolla with a defracted 
exserted tube, and a bilabiate limb; upper lip 4-toothed : 
lower one entire, concave. Stamens 4, declinate ; lower 2 the 
longest; filaments free, toothless; anthers ovate-reniform, with 
contluent cells. Style subulate at apex, shortly and equally 
bifid.—Herbs. Whorls of flowers densely approximate into 
simple spikes. This genus differs from section Pyramídium of 
Plectranthus in the form of the calyx,-and in habit. 
1 P. cærv'rea (Hook. l.c.) ©. S. Native of Madagascar, 
Bojer. Stem and branches glabrous, tetragonal. Leaves ses- 
sile, oblong-linear, or lanceolate, acute, remotely serrated, nar- 
rowed at the base, glabrous, glandular beneath; floral ones 
bractea-formed, shorter than the calyx. Spikes dense, terminal, 
1-2 inches long. Corollas small, blue. 
Blue-tiowered Pychnostachys. Fl. Aug. Clt. 1825. Pl. 2 
to 3 feet. 
Cult. For culture and propagation see O'cymum, p. 674. 
XIII. PELTODON (from zedrn, pelte, a buckler; and 
odove o£ovroc, odous odontos, a tooth; in reference to the teeth 
of the calyx being terminated each by a peltate, sub-concave, 
ciliated, dilated appendage.) Pohl. pl. bras. 1. p. 66. Benth. 
lab. p. 62. 
Lin. syst. Didyndmia, Gymnospérmia. Calyx campanulate, 
equal, 5-toothed ; teeth equal, erect, subulate, dilated at top 
into a peltate, sub-concave, ciliated appendage ; throat beard- 
ed; increasing in the fruit-bearing state, membranous, and a 
little inflated. Tube of corolla straight, a little inflated, about 
equal in length to the calycine teeth; limb sub-bilabiate : upper 
lip bifid, spreading : lower lip trifid, longer and declinate : lateral 
lobes oblong, spreading : middle one somewhat stipitate, nar- 
rowed at the base, transversely somewhat callous, at length 
oblong, saccate, acute, quite entire, abruptly dejected at the 
time of expansion. Stamens 4, didynamous: lower ones the 
longest; filaments free, toothless, glabrous ; anthers ovate-reni- 
form, with sub-confluent cells. Style shortly bifid at apex ; 
stigmas terminal, or sub-marginal. Achenia roundish, com- 
pressed, naked, smooth.—Herbs with the habit of Hyptis capi- 
tata, from which they hardly differ, unless by the calyx. 
1 P. rusrrLus (Pohl, pl. bras. 1. p. 67. t. 54.) stem humble, 
nearly simple; leaves sessile, elliptic, crenated, glabrous, pilose 
at the nerves; bracteas roundish, or cuneated at the base, 
pilose, rather exceeding the flowers. 4. S. Native of Brazil, 
in dry pastures in the province of Goyaz, and the South of 
Brazil. Heads of flowers hemispherical. Corollas white. 
Least Peltodon. Pl. procumbent, or erectish. 
2 P.rówerers (St. Hil. mss. ex Benth. lab. p. 63.) stem 
short, procumbent, nearly simple, glabrous, or pubescent ; 
. leaves sessile, elliptic, crenated, glabrous, or pilose on the 
nerves ; bracteas rounded, or cuneated at the base, glabrous 
or pilose, rather shorter than the flowers. %.? S. Native of 
Brazil, about rivulets near Santa Borja, in the missions of the 
Uruguay; and in fields near Curitiba, in the province of St, 
LABIATA. XII. Pycunostacnys. XIII. Perropon. XIV. MansvPrANTHUS. XV. Hyetis. 
Paul. Very nearly allied to P. pusillus, but differs in the 
peduncles being twice as long, in the bracteas being shorter, and 
in the calyxes and corollas being dark purple, not whitish yellow 
as in that species. 
Long-peduncled Peltodon. Pl. procumbent. 
3 P. nApicaxs (Pohl, pl. bras. 1. p. 68. t. 55.) stem creep- 
ing, branched, radicant, villous; leaves petiolate, ovate, blunt- 
ish, crenated, rounded, or somewhat cordate at the base, hispid 
on the nerves on both surfaces ; bracteas crenated, cordate at 
the base. Y. S. Native of Brazil, in grassy places in the 
provinces of Rio Janeiro and Minas Geraes ; and south of 
these provinces. Stem tetragonal, elongated. Leaves 1-2 
inches long. Inflorescence capitate. Corollas white. 
Rooting Peltodon. Pl. creeping. 
4 P. romentosus (Pohl, pl. bras. 1. p. 69. t. 56.) stem 
branched, villous; leaves oval, crenated, roundly cuneated at 
the base, and running into the petioles, pilose, tomentose 
beneath ; outer bracteas cordately auricled, crenated, villous. 
3.? S. Native of Brazil, in the provinces of St. Paul and 
Minas Geraes, in dry pastures. Plant beset with rufous villi. 
Stem bluntly tetragonal. Inflorescence capitate. Corollas yel- 
lowish purple. 
Tomentose Peltodon. Pl. 2 feet, ascending. 
Cult. For culture and propagation see O'cymum, p. 674. 
XIV. MARSYPIA'NTHUS (from papouroc, marsupos, a 
purse ; and avBoc, anthos, a flower; in reference to the shape 
of the flowers.) Mart. mss. Benth. lab. p. 64.  Hjptis 
species of authors. Clinopddium species, Vahl. 
Lin. syst. Didynàmia, Gymnospérmia. Calyx campanulate, 
narrowed at the base, equal, 5-toothed ; teeth equal, lanceolate, 
erectly spreading ; throat naked inside. Tube of corolla straight, 
about equal in length to the calycine teeth ; limb sub-bilabiate ; 
upper lip bifid; lower one trifid : lateral lobes like the lobes of 
the superior lip, ovate,-erectly spreading, nearly equal: lower 
segment saccate, somewhat stipitate at the base, acuminated at 
apex, abruptly dejected at the time of florescence. Stamens 4, 
didynamous, declinate; lower 2 the longest; filaments free, 
toothless, glabrous ; anthers ovate-reniform, with somewhat con- 
fluent cells. Style shortly bifid at top; lobes flattened a little; 
stigmas submarginal. Achenia ovoid, compressed, concave m- 
side, with a membranous, involute, fringed border. This genus 
is very closely allied to the capitate flowered species of Hyptis, 
but differs in the calyx, and especially by the fruit. 
1 M. mveroipzs (Mart. mss. Benth. lab. p. 64.) ©. 5: 
Native of Tropical America, in various places, as of Mexico, 
Trinidad, Porto Rico, Cayenne, Brazil, Guayaquil, &c. Herb 
annual procumbent, branched, villous, glabrous, pubescent, or 
tomentose. Leaves more or less petiolate ; upper ones nearly 
sessile, roundish-ovate, ovate-lanceolate, lanceolate, oblong, 
acute, or bluntish, serrated or crenated, narrowed, cuneated or 
roundish at the base, rarely subcordate. Whorls secund. 
Heads 6-30-flowered, sessile, or more or less pedunculate- 
Corolla blue, or purple, hardly exceeding the calyx. 
Hyptis-like Marsypianthus, Fl.July, Aug. Clt. 1823. Pl, 
procumbent. 
Cult. For culture and propagation see O'cymum, p. 674. 
XV. HY'PTIS (from $zrioc, hyptios, resupinate ; limb of 
corolla turned on its back.) Jacq. coll. 1. p. 101, 102. Poit. 
et Turp. ann. mus. vol. 7. Benth. lab. p. 64, and other re- 
cent authors.— Bystropógon species, Lher.—Balldta and Népet 
species, Lin. and other old authors. 
Lin. syst. Didynàmia, Gy 
1 
pérmia. Calyx ovate, 0f 
