- TETRANDRIA. MONOGYNIA. 101 
a Spectes. 1. C. americana. (Calix 4-toothed; berries 
- purple, edible; but scarcely wholesome.) Of this genus, 
besides the present species, there are 2 others in the 
island of Jamaica, 1 in Carthagena, 2 in Peru, 1 in Japan, 
and 5 in India. 
147. LYCIUM. L. (Box-Thorn.) 
~ Calix urceolate short, 4 or 5-cleft, or 4 to 5- 
toothed. Corolla longer, tubulose, border erect, 
4 to 5-lobed, or flat, and 4 to 5- parted; orifice, 
(or margin of the tube) closed by the beard of . 
ie the filaments. Stamina exserted. Berry round- 
. ish, 2 celled, many-seeded; seeds reniform. 
Shrubs for the most part spiny; ramuli pungently ter- 
Minated; leaves alternate, sometimes fasciculated; flow- 
ers axillary, solitary, or by pairs. 
Species. 1. L. carolinianum. (Without thorns.) —Of 
} this genus there are 3 species indigenous to the South of 
Europe, 2 of them at the same time common to Northern 
Africa, with two others gators to this portion of Africa; 
4 to the Cape of Good Hope; 1 species and a permanent 
variety were discovered by Pallas in the deserts of Tar- 
tary, contiguous to the shores of the Caspian sea; 2 
if not 3 other species appear to be peculiar to Chis; == 
6 to Pera. 
148. CENTAURELLA. Michaux. CENTAURI- 
le um. Persoon. 
Calix 4-parted, appressed. Corolla subcam- 
panulate, 4 parted; segments somewhat erect. 
Stigma thick. glandulous, and partly bifid. Cap- 
sule 1-celled, 2. valved, many-seeded, surround- 2 
FE ed by the porsistent calix and corolla, 
‘ -- Smatl anntals; appearing almost leafless; leaves minute, 
opposite, sessile, subulate. Plowers subpaniculate. ere 
Species. 1. C. verna. 2. eestivale,Puasu. Probably 
~~ a@ mere variety of the following. 5. paniculata. ( Bartonia. 
tenelfa, Muhlenberg-) : 
Es e A North American genus, nearly allied to — 3 
} Rt EXACUM. L. ae 
| oe deeply a. Coralia ste 4 
