(J8G 



LABIAT/E. XII. PYCHNOSTACHYS. XIII. PELTODON. XIV. MARSYPIANTHUS. XV. HYPTIS. 



leaves under the divisions. Flowers secund, lilac. Plant with 

 a sweet odour. 



Sweet-scented CEollanthus. Fl. July, Aug. Clt. 1825. PI. 

 1 foot. 



Cult. For culture and propagation see O'cymum, p. 674. 



XII. PYCHNO'STACHYS (from x e , pychnos, dense ; 

 aed ora X v, stachys, a spike ; in allusion to the spikes being 

 dense-flowered.) Hook, exot, fl. 2. t. 202. Benth. lab. 

 p. 61. 



LIN. SYST. Didynamia, Gymnospermia. 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 

 confluent cells. Style subulate at apex, shortly and equally 

 bifid. Herbs. Whorls of flowers densely approximate into 

 simple spikes. This genus differs from section Pyramidium of 

 Plectranthus in the form of the calyx, and in habit. 



1 P. (LERU'LEA (Hook. 1. c.) O- 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. 



5/we-rlowered Pychnostachys. Fl. Aug. Clt. 1825. PI. 2 

 to 3 feet. 



Cult. For culture and propagation see O'cymum, p. 674. 



XIII. PE'LTODON (from m\Tn, yelte, a buckler; and 

 odovg odovTog, odous odontos, a tooth ; in reference to the teeth 

 of the calyx being terminated each by a peltate, sub-concave, 

 ciliated, dilated appendage.) Pohl. pi. bras. 1. p. 66. Benth. 

 lab. p. 62. 



LIN. SYSt. Didyndmia, Gymnospermia. 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- 

 tala, from which they hardly differ, unless by the calyx. 



1 P. PUSI'LLUS (Pohl, pi. 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. If. 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. PI. procumbent, or erectish. 



2 P. LONGIPES (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. 



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. PI. procumbent. 



3 P. RAD!CANS (Pohl, pi. bras. 1. p. 63. 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. I/ . 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. PI. creeping. 



4 P. TOMENTOSUS (Pohl, pi. 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. 

 I/ . ? 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. PI. 2 feet, ascending. 



Cull. For culture and propagation see O'cymum, p. 674. 



XIV. MARSYPIA'NTHUS (from ^ap^Troc, marsupos, a 

 purse ; and avOof, anthos, a flower ; in reference to the shape 

 of the flowers.) Mart. mss. Benth. lab. p. 64. Hyptis 

 species of authors. Clinopodium species, Vahl. 



LIN. SYST. Didynamia, Gymnospermia. 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 in- 

 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. HYPTOIDES (Mart. mss. Benth. lab. p. 64.) O- S. 

 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. 



Hyplis-like Marsypianthus. Fl. July, Aug. Clt. 1823. PI. 

 procumbent. 



Cult. For culture and propagation see O'cymum, p. 674. 



XV. HY'PTIS (from VTTTIOS, 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. Bystropogon species, Lher. Ballota and Nepeta 

 species, Lin. and other old authors. 



LIN. SYST. Didynamia, Gymnospermia. Calyx ovate, or 

 1 



