3#, BORTUS JAMAICENSIS. rnmR 



This is a shruba fathom in height ami more ; stem round, upright, smooth ; branches 

 somewhat jointed. Leaves alternate, large, cordate-rounded, acuminate, nine-nerved, 

 smooth; petioles smooth, striated, sheathing. Spikes lone, peduncle;!, opposite to 

 die leaves, round, upright; peduncles shorter than the petioles; stamens end pist- s 

 inserted spirally into the spike ; filaments scarcely aBA',; anthers two, sub-sessile, open- 

 ing transversely at the top ; germs tinder the anthers; styles three, thiekish j^ stigma 

 blunt. Su: 



24. IT! I UK! I. CM.. BEAUTIFUL. 



Leaves in fours, sub-sessile, obi mg, nerveless, quite entire; stem round^. 



spikes terminal!:' 



This species is said to have been found in Jamaica by Thomas CJarkj.M.D. 



25. SCABRUW; RUGGED. 



Leaves broad-ovate, acuminate, oblrque; wrinkled, rugged; spikes erect. 



Tins is a shrub live or six feet high; stem upright, round, somewhat rugged; 

 branches spreading, rugged. Leaves alternate, many-nerved, veined; nerves rigid, 

 on the lower surface more raised ; petioles short, round. Peduncles opposite to the* 

 leaves, shorter th n the petioles, thick, roun I, rugged, solitary. Spikes two inches 

 long, cylindrical; flewer-s-crowded ; calyx none, but a minute roundish scale, at the 

 sides of which are two very short filaments; anthers very minute, roundish, twin; 

 germ ovate; styles none; stigmas three, recurved, permanent. It differs fron* 

 aduncum, which it resembles, verv much, in having wider leaves, brownish green not 

 paler, and upright not hooked spikes. Native of Jamaica in the mountains 01 the mi I 

 tgmperate part, Su\. 



See Colt's- 1'eoT. 



PEPPER-GRASS. LEPIDIUM. 



Cl. 15, OR. 1. Tetradynamia siliarfosa. Nat. or. Slliquos/e. 



This generic name is derived from a Greek word signifying a scale. 



Gen. char. Calyx a four-leaved perianth, leaflets ovate, concave, deciduous \ 

 corolla four-petaled, cross-shaped ; petals ob-ovate, tuice the length of the calyx, 

 with narrow claws ; stamens six awl-shaped filaments, length of the calyx, tl.c two 

 Opposite ones shorter; anthers simple; the pistil has a heart-shaped germ, a 

 simple style, the length of the stamens, and an obtuse stigma; the pericarp a 

 heart-shaped silicic, emargmate, compressed, sharp oii the margin, two-celled ; 

 valves navicular, keeled, opposite the lanceolate dissepiment ; see Is some, ovate- 

 acumiriate, narrower at the base, nodding. One species is a native of Jamaica; 

 the sativuffl, or garden cress, has also been introduced. 



1. VIRGINICUM, VIRGINIAN, 



Jl'cris humilior annua Virginiaxia ramosior. Sloane, v. 1, p. 195, 

 t. 123, f. 3. Erectum ramosum, foliis inferioribus oblongis pinna- 

 iijidc lobatis, supcrioribus \angustii serrdtis. Browne, p. 272. 



Flowers . 



