72 25. LEGUMINOS#. 
entire.—F. B. S. 2635.—Edge of the pods with 3 ridges, the 
central one so prominent as to be easily taken for the true mar- 
gin, no central furrow but the central ridge common to the 2 
rows of spines. Sides of the pods smooth. Spines varying con- 
siderably m length and the whole plant in hairiness. This is 
probably Ray’s Orford plant.—In sandy fields, rare. A.V. E. 
7. M. denticulata (Willd.); peduncles 1—5-flowered, pods 
rather loosely spiral consisting of 2 or 3 turns deeply reticulated 
with a thin edge, spines in 2 rows divergent subulate hooked, 
leaflets obcordate, stip. laciniated.—E. B. 8. 2634.—Edge of the 
pods as in A. minima. Spmes about equalling the diameter of 
the pod. Glabrous.—8. M. apiculata (Willd.); spines very short 
without hooks, often scarcely longer than their own breadth so 
as to appear little more than tubercles, ped. 3—10-flowered.— 
On sandy ground near the sea. A. V.—VIII. E. I. 
6. MeuiLorus Lam. 
1. M. officinalis (Willd.) ; racemes lax, wings keel and standard 
equal, pods ovate acute compressed transversely wrinkled hairy, 
leaflets serrate truncate narrowly ovate, stip. setaceous entire.— 
E. B. 1340. Af. macrorhiza Pers., Koch.—St. erect, 2—3 feet 
high. Fl. im lateral racemes, yellow.—Waste places. B.? VI. 
—VIII. AMelilot. 
2. M. arvensis (Willd.) ; racemes lax, wings and standard equal 
longer than the keel, pods ovate obtuse mucronate rounded and 
slightly keeled on the back transversely plicate-rugose glabrous, 
Its. obcordate or oblong serrate, uppermost lanceolate, stip. subu- 
late entire.—E. B. S.2960. M. officinalis Koch.—St. erect. FI. 
yellowish, in long racemes. Pods brown.—Waste places. Cam- 
bridge; Thetford; &c. B. VI. VII. 
3. M. vulgaris (Willd.) ; racemes lax, wings and keel equal but 
shorter than the standard, pods ovate obtuse mucronate reticulate- 
rugose glabrous, leaflets obovate the upper ones oblong serrate 
obtuse, stip. awlshaped entire —j/. leucantha Koch, E. B. 8. 
2689. M. alba Koch.—St. erect. Fl. white.—Sandy and gravelly 
places near the sea, rare. B. VII. VIII. 
7. Trirotium Linn. 
* FI. sessile, cal. with an elevated thickened often hairy line or 
ring of hairs in its throat, not inflated. 
1. T. pratense (L.); heads ovate dense sessile, cal. 10-nerved 
hairy not half so long as the corolla, teeth setaceous ciliated, 
stip. ovate abruptly bristle-pointed, leaflets oval emarginate upper 
ones entire apiculate.—E. B. 1770. St. 15. 11.—In the cultivated 
plant the leaflets are usually all quite entire. Cal.-teeth 5, 
