531 
AMMYRSINE buxifolia. 
Sand-myrtle. 
DECANDRIA MONOGYNI4. 
Nat. ord. RHODODENDRA (RHODORACER). Jussieu gen. 158. Div. 
II. Corolla subpolypetala. f ; 
AMMYRSINE. Cal. profunde 5-partitus. Pet. 5. Stamina exserta. 
Caps. 5-locularis, apice dehiscens. Pursh amer. sept. 1. 280. 
Ammyrsine buxifolia. Pursh amer. sept. 1. 301. 
Ledum buxifolium. Hort. Kew. 2. 65, ed. 2. 3.48. Bergius in act. petrop. 
1777. part. 1. 213. t. 3. fig. 2. Willd. sp. pl. 2. 602. Michaus bor. 
amer. 1. 260. Nuttall gen. 1. 275. 
Ledum thymifolium. Lamarck encyc. 3. 459. illustr. t. 363. fig. 2. 
“ Ledum (Leiophyllum) thymifolium. Persoon syst. 1. 477. 
Frutex parvus, vix pedalis. Caulis erectus, teretiusculus, cicatrictbus 
seaber, cinerascens, determinate ramosus: rami ad interstitia stata, subver- 
ticillatt foliost v. cicatrizati; singuli paritér ramulosi, erecti. Folia Bux, 
sparsa, frequentia, breviter petiolata, ovalia, obtusa, 2 v. 3 lineas longa, 
superné subrugosa, subtus levia punctata, utrinque nitida, margine undique 
reclinato. Corymbi florum terminales simplices, pedunculis unifloris pubes- 
centibus: bractew oblonge, obtuse, subimbricate, patentes, receptaculo pro- 
prio site undé peduncult exeunt. Cal. monophyllus glaber basi intrusd, 
5-angulus, 5-partitus, lacinits lanceolatis acutis erectis. Cor. alba; pet. 5 
ovata, obtusa, calyce longiora, sessilia, patentia. Fil. subulata,  corollé 
longiora, erecto-patentia, alba. Anth. purpuree, ovate, parve, hinc pla- 
niuscule, inde didyme, bisulcate, incumbenti-erecte. Germ. superum, sub- 
rotundum, undique sulcatum, scabridum. Stylus cylindricus, erectus, longi- 
tudine staminum: stigma simplex, subemarginatum truncatum. Caps. 
ovata, acuta, subrugosa, 3-loc., 3-valv., valvulis latere interiore longitudi- 
naliter dehiscentibus: sem. plurima, parva, ovata, scobe interstincta. 
Bergius loc. cit. 
A genus proposed by Mr. Pursh in the work above 
cited; and distinguished from Lepum, in which it had 
been previously included, by a proportionately much larger 
and more deeply divided calyx, by a five-petalled instead 
of a one-petalled five-cleft corolla, protruding stamens, and 
capsule opening at the summit instead of the base; as well 
as by difference of general habit. 
Buxifolia, the only recorded species, is known by the 
name of Sand-myrtle in the state of New Jersey, where it . 
