76 24. EHAMK"ACE^. 25. lEGTJMINOS^. 



Order XXIV. EHAMNACE^. 



Cal. 4 — 5-cleft, valvate in tlie bud. Pet. di.stinet, inserted 

 in the throat of the calyx. Stam. opposite to the pet. and 

 equalling them in number. Ovary wholly or in part superior, 

 2 — 3 — 4-celled, surrounded by a glandular disk. Seeds solitary, 

 erect. Embryo straight. R'. fleshy or dry. — Shrubs. Stip. 

 minute. 



1. Ehamnus. Cal. pitcher-shaped, 4 — 5-cleft. Pet. 4 or 5, 

 or sometimes 0, inserted with the stam. on the margin of 

 the tube of the calyx. Fruit fleshy, with 2 — 4 cells and as 

 many seeds. 



1. Eham'ntjs imji. Buckthorn. 



1. H. cathar'tious (L.) ; thorns terminal, _/?. 4-cZe/i5 dicecious, 

 petioles much longer than the stipules, I. roundish-cmal sharply 

 toothed, fr. with 4 seeds. — E. B. 1629. — Branches opposite. Ser- 

 ratures of the 1. incurved, glandular. Notch in the seeds 

 closed. Styles 4, united halfway up. — Hedges and thickets. 

 Sh. v.— Vli. Buckthorn. E. S. I. 



2. B. Fran'yula (L.) ; spineless, __^. b-cleft perfect, I. elUptic- 

 oiovate acuminate narrowed below entire, fr. with 2 seeds, style 

 simple. — Sy. E. B. 319. — Brmiches alternate. El. in small 

 clusters, greenish white, small. — Hedges and thickets. Sh. V. 

 \l. Black Alder. E. S. ? I. 



Order XXV. LEGUMINOSJE. 



Cal. inferior. Sep. 6, more or less combined, odd one inferior. 

 Cor. papilionaceous (in our plants), inserted into the base of the 

 calyx. Pet. 5, odd one superior and external. Stam. 10 (in 

 our plants), monadelphous or diadelphous. Ovary free, 1-ceIled. 

 Frmt a legume ; placenta on the upper suture ; style from the 

 upper suture. Embryo bent over the edge of the cotyledons, or 

 straight. — All our plants have papilionaceous flowers and 10 

 stamens in one bundle or in two bundles of 9 and 1. L. mostly 

 stipulate ; Its. often stipulate. 



Tribe I. LOTEJE. Pod continuous. Cotyledons rising above 

 the ground and becoming green leaves. Leaves of 1 or 3 

 leaflets or pinnate with a terminal leajlet. 



* Leajlet solitary. Stame/ns monadelphous. 

 1. Ulex. Cal. of 1 parts; the upper with 2, the lower with -1 



