Rubiacecs.'] 
MEXICO.— SUPPLEMENT. 
427 
truncate gerraen aequante. Schlecht. in Linnesa, 5. p. 1 72. Hook. le. Plant, t. 374. 
/3. foliis minus acuminatis, floribus brevioribus. 
Hab. 9>. Between San Bias and Tepic. — We possess specimens of what we consider the type of this species 
from Xalapa (the original station of Schiede) gathered by M. Galeotti. The present has less acuminated 
frequently 5-(as w'ell as 3-) nerved leaves, and shorter flowers. In other respects the two plants appear to 
be the same. The same species is in Andrieux PL Mexic. Exsicc, n. 342, from between Chaleo and 
Gonmacatapec. 
Ord. XXIV. RUBIACEiE. Juss. 
1. Bouvardia linearis, H.B.K. Nov. Gen. Am. 3. p. 383. Hartweg, Plant. Mex. n. 106. 
Benth. PI. Hartweg. n. 106. 
Hab. Between San Bias and Tepic. — This is probably a very^ general plant throughout Mexico, and we 
suspect a very sportive one. Kunth remarks that his B. angustifolia and B. hirtella are probably not different 
from it; and we are almost of opinion that through the medium of B. splendens, Graham in Bot. Mag. t. 3781, 
it may be traced even into B. Jacquinii, H.B.K. (the Ixora Americana, Jacq., Houstonia coccinea, Andr.) 
2. B. scahra • fruticosa, ramis teretibus pubescenti-pilosis, foliis ternis brevissime 
petiolatis lato-ovatis acuminatis pubescenti-scabris penninerviis, stipulis e lata basi sub- 
ulato-setaceis, corymbis terminalibus trichotomis, dentibus calycinis longe subulatis scabris, 
corolla glaberrima. — B. obovata, Benth. Plant. Hartw. n. 99. an H. B. K. ? Hartw. 
Plant. Mex. n. 99. 
Hab. Between San Bias and Tepic.— This is the same plant with n. 99. of Mr Hartweg’s Mexican 
collections, and. has been considered by Mr Bentham to be the B. obovata of H.B.K. — but that plant is 
described as having a glabrous, 4-sided, square stem, and “folia quaterna obovato-oblonga, acurainato-mucro- 
nata, basi angustata, reticulato-venosa, utrinque glabriuscula characters which do not tally with our plant. Our 
B, scahra, is remarkable for the harsh rigid pubescence which more or less abundantly clothes every part of the 
plant, and which is particularly copious on the young branches and foliage and on the calyces. Leaves 2-3 
inches long. The stipules are formed by a broad membrane, uniting the bases of the petioles and bearing a 
strong subulate or rather setaceous tooth, and one or two lesser and filamentous ones, which are soon 
deciduous. Corymb many-flow'ered, terminal, trichotomously divided, at the setting on of the branches 
bearing 3 small linear-lanceolate leaves and similar stipules to those of the stem, but having less rigid teeth 
or setae. The calycine teeth are particularly long, subulate and flexuous ; the corolla an inch and a half long, 
scarlet (?), the tube slender, w’idening upwards, the limb of 4 broadly ovate spreading segments.* 
* In Mr Andrieux’s Mexican collections are three plants which seem to be referrible to this genus Bou- 
vardia, and which may be thus characterized. 
1. Bouvardia Tolucana ; suffruticosa, ramis erectis trichotomis foliisque ternis lineari-lanceolatis sessilibus 
pubescenti-scabris, stipulis latis membranaceis subbisetigeris, corymbis terminalibus trichotomis, dentibus 
calycinis brevibus subulatis, corollse pubescentis limbi laciniis late ovatis brevibus suberectis. 
Hab. Toluca. Andrieux, PI. Mexic. exsicc. n. 832. Nom. vernac. Trompetillo . — The lower part of the 
stem is shrubby, the rest herbaceous. The leaves are scarcely an inch long, quite sessile. Flowers an inch 
in length. Corolla clothed with a rather harsh white down, the limb very short. 
