188 BOTANY OF THE VOYAGil OF H.M.S. HERALD. 
804. Hyptis vukanica, Seem., aff. H. Purdim ct H. oblongifoUiB ; jEruticosa, ramis dense 
subfloccoso-tomciitosis, foliis petiolatis ovato-lanccoiatis acutis irregulariter crenatis basi in petiolum 
angustatis supra viridibus villosis subtus dense albido- villosis, fioribus dense capitatis vol subsi>icatis 
secundis, bractcis setaccis moUibus, calycibus moUissime viilosis dentibus subulatis, coroD® tubo 
breviter exscrto. A^olcauo of Chiriqui, Vera^uas. 
A shrub from 3 to 4 feet higb ; leaves, including petiole, about 4 inches long, and, in the middle, nearly 
1 inch broad ; flowers forming large panicles at the end of the branches. 
805. Hyptis maveolens, Poit., De Cand. Prodr. vol. xii. p. 126. In savanas from Panama to 
Santiago de Veraguas. 
806. Hyptis verticillata, Jacq., Be Cand. Prodr. vol. xii. p. 129. Banks of the river Cbagres; 
also in and about the city of Panama. 
Specimens of another species of Ui/ptis, apparently allied to S. recurvata, Poit., but too young for 
determination, were collected by me in the savanas near Panama, in October, 1846. 
807. Salvia occidentaUs, Swartz, De Cand. Prodr. vol. xii. p. 296. In waste places, common 
all over the country ; Chagrcs (Fcndlcr, no. 229) . 
808. Salvia orbicularis, Beuth., De Cand. Prodr. vol. xii. p. 298. Panama (Sinclair !) : Cha^res 
(Fendl.no. 224). 
809. Salvia hyjjtoides, Martens et Gall., De Cand. Prodr. vol. xii. p. 300. Southern Darien. 
810. Salvia alhiflora. Martens et Gall., De Cand. Prodr. vol. xii. p. 307, Near Cruces, Pro\-ince 
of Panama. 
Flowers white ! 
811. Salvia brevicalyx, Benth., De Cand. Prodr. vol. xii. p. 309. Volcano of Cbiriqui, Veraguas. 
A half-shrubbv nlant. abmit a ^pvt lii<r>, ■ flnTyroT-o Ar,^^ \^,,^ 
VERBENACE^. 
It may be said that, generally speaking, all plants belonging to this Order are found in sunny, exposed 
positions, not m cool, shady places. In the Isthmus this remao-k appUes without exception to aU the Ver^ 
lenacea hitherto observed : they either grow on the road-sides, and in waste places around human habita- 
tions, or m the savanas and on the outskirts of woods. Petrea voluhilis, a climbing plant, is occasionaUy 
met with m the virgin forests, but it only flowers in profusion in such places where its upper branches 
enjoy the full influence of the sun. It is this tendency of rerhenace^ to seek, under aU circumstances, the 
rays of our great lummaiy, which must be considered as one of the chief reasons why they are so numerous 
m the tropics, occur but sparingly in temperate latitudes, and are totaUy excluded from the fidgid zones. 
812. PiuvA echvnata, Jnss., De Cand. Prodr. vol. xi. p. 534. In waste places, common all over 
the Isthmus. 
813. Verbena littoralis, Kunth, De Cand. Prodr. vol. xi. p. 542. Volcano of Chiriqui, Veraguas. 
814. Stachytakpha dichotoma, Vahl, De Cand. Prodr. vol. xi. p. 561. In waste places, com- 
mon all over the Isthmus. 
