( 46 . 9 .) 
■ E'MPETRUM* *. 
Linnean Class and Order. DiCF/ciAf, Tria'ndria J. 
Natural Order. Empe'treve, Nuttall. — Lind). Syn. p. 224; 
Introd. 1o Nat. Syst. of Bot. p. 109. — Loud. Hort. Brit. p. 535. ; Arb. 
et Frutic. Brit. v. iv. p. 2506. — Mack. FI. Hibern. p. 237. — Hook. 
Brit. FI. (4th ed.) p. 418. — Eric.e ; sect. 3. Jus3. Gen. PI. pp. 159 
and 162. — Sm. Gr. of Bot. p. 115. — Querneales; sect. Euphor- 
hina?; type, Em pf.tra cea? ; Burn. Outl. of Bot. pp. 523, 600, 
and 611. — Miscellanea:; Linn. 
Gen. Char. Sterile Flowers (see fig. 1 & 3.). Calyx (see 
fig. 3, 6.) of 3, egg-shaped, coriaceous, permanent sepals, with im- 
bricated scales (fig. 3, a.) at the base. Corolla (see fig. 3, c.) of 3, 
sometimes more, oblong petals, contracted at the base, larger than 
the sepals, withering. Filaments (see fig. 3.) 3, hair-like, long, 
pendulous, .dnthers roundish, deeply cloven, of 2 cells. — Fertile 
Flowers (see figs. 2 & 4). Calyx and Corolla as in the sterile 
flowers. Germen superior, orbicular, depressed. Style (see fig. 4.) 
simple, upright, very short. Stigmas 6 to 9, oblong, spreading.- 
Fruit (fig. 5.) succulent, orbicular, depressed, wider than the calyx, 
with from 6 to 9, upright, triangular seeds (see fig. 6.), closely dis- 
posed in a circle, gibbous externally. 
The calyx of 3 sepals ; the corolla of 3 petals ; the hair-like 
filaments ; the 6- to 9-cleft stigma ; and the superior berry , with 
from 6 to 9 seeds ; will distinguish this from other genera in the 
same class and order. 
One species British. 
E'MPETRUM NFGRUM. Black Crow-berry. Crake-berry. 
Black-berried Heath. 
Spec. Char. Stems trailing. Leaves linear-oblong. 
Engl. Bot. t. 526.— Ft. Dan. t. 975. —Mill. Illustr. t. 86.— Linn. Sp. PI. p. 1450.— 
Huds. FI. Angl. (2nd ed. ) p. 431. — Willd. Sp. PI. v. iv. pt. n. p. 713. —Sm. FI. 
Brit. v. iii. p. 1072. ; Engl. FI. v. iv. p. 233. — With. (7th ed. ) t. ii. p. 210.— Gray’s 
Nat. Arr. v. ii. p 402. — Lindl. Syn p. 224. — Hook. Brit. FI. p. 434. — Loud. Arb. 
et Frutic. Brit. v. iv. p. 2507. figs. 2375 and 2376, ; Encycl. of Trees and Shrubs, 
p. 1091. f. 2035 and 2036. — Macr. Man. Brit. Bot. p. 205. — Lightf. FI. Scot. v. ii, 
p. 612.- — Thomp. PI. of Berw. p. 96. — Purt. Midi. FI. v. ii. p. 746. — Hook. FI. 
Scot. p. 287. — Grev. FI. Edin. p. 209. — Johnst. FI. of Berw. v. i. p. 218. — Winch’s 
FI. of Northumb. and Durh. p. 64. — Burnett’s Outl. of Bot. v. ii. pp. 611 & 612. — 
Perry’s PI. Varvic. Sel. p. 79. — Dick. FI. Abrtd. p. 58. — Irv. Loud. FI. p. 290. — 
Baines’ FI. of Yorksh. p. 90. — Leiglit. FI. of Shropsh. p. 490. — Mack. Cat. PI. of 
Ire), p. 85. ; FI. Hibern. p. 238. — Empetrum montanum, fructu nigro, Ray’s 
Syn. p. 444. — Erica baccifera procutnbens, Johns. Ger. p. 1383, with a fig. — 
Erica coris folio undecima , Clus. Hist. v. i. p. 45, with a figure. 
Fig. 1. Sterile Plant. — Fig. 2. Fertile Plant. — Fig. 3. A staminiferous Flower; 
a. Scales ; b. Calyx ; c. Corolla. — Fig. 4. A pistilliferous Flower. — Fig. 5. Fruit. — 
Fig. 6. A Seed. — Fig. 7. Section of a Seed. — Fig. 8. Embryo. — Fig. 9. A Leaf. — 
All, except figs. 1, 2, and 6. magnified. 
* From en, upon ; and petros, a rock j in allusion to the place of growth. 
1.0VD0N, -f See fol, 143, note -f-. ; See fol. 90, note -f, 
