BIOECIA. TETRANDUIA. 2,33 



Calls 6 to 8 imbricated scales with tomeiitose margins; an- 

 thers purplish. Calix of tlie fruit similar to that of the 

 stamens; style distinct, rigid and persistent, stigmas 

 about 4 or 6, purple, 2 only conspicuous; berry yellow- 

 ish, small and astringent to the taste, 2-seeded, seeds bo- 

 ny, plano-convex, v. v. Near Augusta in Georgia, oa 

 gravelly hills. 



This genus with Empetrum ought apparently to form a 

 section (Empetre-e) at the end of the Conifers, charac- 

 terized by producing a berry containing more than 1 nu- 

 ciform seed. The affinity of Ceratiola to Taxtis, though 

 certainly remote, still appears to justify the i-eference of 

 these two genera to this family, with which they also 

 agree in the structure of the seed, rather than the Ericjsi 

 which they resemble in nothing but the leaves! 



Order III.— -TRIzVNDRIA. 

 784. EMPETRUM. L. (Crow or Crake-berry.) 

 Cafe gemmaceous, imbricated, scales about 

 9, the 3 innermost petaloid. Stigmas 9. Berry 

 about 9-seede(]. Seeds osseous. 



Erect or small procumbent shrubs; leaves crowded, al- 

 ternate or subverticiilate, semnervirent? margin revolute ; 

 flowers axillary, sessile. 



Species. 1. E. nigrum. Berries nearly black. Hab» 

 In Canada. 



Of this genus there are 2 species in Europe, E. album 

 in Portugal and E. nigrum in the northern parts of Eu- 

 rope, there is also a third species indigenous to the 

 Straits of Magellan, and probably a fourth in Guianne, 

 which I have observed in the herbarium of A.B. Lambert, 

 Esqr London. 



Order IV.— TETRANDRIA. 

 85. ^MACLURA.j (Bow-wood, Yellow-wood.) 

 Masc. Jiment? Fem. Calix none. Co- 



I Dedicated to William Maclure, Esq. of the United States, 

 a Philosopher,, whose devotion to natural science, and particu- 

 larly to the geology of North America, has scarcely been ex- 

 ceeded by Rair.or;d or Saussure in Europe, 

 u 2 



