182 ENGLISH BOTANY. 
such convenience to recommend it as that attending the division 
of the Cruciferze into Siliquosze and Siliculose. 
Great Yellow Cress, Great Water Rocket or Radish, 
Amphibious Yellow Cress. 
French, Cresson Amphibie. 
Section IIJ.—SILICULOS®. 
Fruit a silicula, not more than three or four times as long as 
broad, ovoid or oblong, usually compressed, not divided by trans- 
verse partitions, generally opening when ripe by two valves which 
split away from the replum, rarely indehiscent. 
Sus-Secrion I.—LATISEPT A. 
Pod compressed parallel to the replum, so that the latter lies 
in the greatest transverse diameter of the pod; or not compressed, 
in which case the diameter of the pod measured from edge to edge 
of the valves is not conspicuously less than that taken from the 
back of one to the back of the other. 
Trise VIT.—ALYSSINE. 
Cotyledons flat, generally with the radicle lying along their 
edges on one side (accumbent). Pod short and broad, more or 
less compressed parallel to the replum, or slightly compressed at 
right angles to it, opening by 2 flat or convex valves. 
GENUS XIV—COCHLEARIA. Linn. 
Sepals short, somewhat spreading, equal at the base. Petals 
equal, entire, with short claws. Filaments without wings or teeth. 
Pod globular or ovoid; valves extremely convex, with or without a 
dorsal nerve ; replum sometimes perforated; style short or elongated. 
Seeds few or numerous, obovate or oblong, compressed, not winged, 
usually arranged in 2 rows in each cell of the pod. 
Glabrous herbs, with the flowers commonly white, arranged in 
corymbs or short racemes, which afterwards elongate. 
The generic name comes from cochleare, a spoon, from the form of the root leaves, 
Sus-Genus L—ARMORACIA. Jf. der Wett. 
Valves without a dorsal nerve. 
French, Cranson. German, MJeerrettig. 
The name of this genus is of Celtic origin, from a, near, mor, the sea, rich, against; 
that is to say, a plant growing near the sea. 
