212 
NATURAL HISTORY OF PLANTS. 
Trigonel (Fr., Zrigonelle) has, like Medick and Clover, an obtuse keel 
Melilotus officinalis (Common Melilot). 
Fre. 180. 
Floriferous branch (3). 
Wi. 
and pinnate-trifoliolate leaflets ; 
but the fruit is very variable in 
form, being straight bowed or 
sickle-shaped, sometimes thick 
and beaked, sometimes narrow 
or linear, or broad and flat- 
tened. It opens into two valves 
in certain species, into one in 
others; and may sometimes be 
quite indehiscent. Parochetus has 
an acute keel and a bivalve pod. 
Finally, Rest-harrow (Ononzs ; 
Fr., Bugrane) has numerous points 
of affinity with Genistee, in which 
series the genus has been placed 
by several authors. But in the 
form of the staminal filament, 
and in the leaves and inflores- 
cence, it comes near rifolice. 
The stamens are monadelphous 
and the pod opens into two 
valves. 
SAIN FOIN. 
Hedysarum' (Fr., Sainfoin®), has irregular resupinate hermaphro- 
dite flowers. 
On the edges of the little cup-shaped receptacle, lined 
with glandular tissue, are inserted the perianth and androceum, while 
the gynzceum springs from the bottom. The gamosepalous calyx 
divides above into five subequal lobes or teeth, valvate or slightly 
17., Inst., 401, t. 225 (part.).—L., Gen., n., 
887 (part.).—J., Gen., 362.—GaRtn., Fruct., ii. 
t. 155.—Lamx., Dict., vi. 395; Suppl., v. 14; 
Til. t. 628.—JauME, in Desvx. Journ. Bot., i. 
61 (part.).—DC., Mém. Légum., 342; Prodr., 
ji. 340.—Spacu, Suit. @ Buffon, i. 286.—Envt., 
Gen.,n. 6618.—Bastner, Enum. Mon, Hedysar., 
in Act, Petrop. (1846).—B. H., Gen., 510, n. 
144.—Echinolobium DEsvx., Journ. Bot., i. 128, 
t. 5. 
? [The English word Sainfoin is restricted to 
the English plant Onobdrychis sativa (Fr., Es- 
parcette-Sainfoin). | 
3 White, pink, purple, or violet; rarely 
yellowish. 
