rULSE FAMILY. 117 



7. GENISTA. Leaves entire ; stipules very iiiiniito or nniio. Cal.vx 5-clcft. Keel oblonp, 



nearly strai<rht, blunt, turned down wluMi the flower opens. Pod mostly flat. Low 

 shrubby plants. 



8. ULEX. Leaves reduced to a thorn-like i)etioli' or sharp scale ; stipules 0. Calvx '2- 



parted, upper sesraent 2- lower 3-toothed. Keel oblong, erect. Ovary sessile ; pod 

 ovate-oblong to short linear. Seeds with strophiole. Densely spiny shrubs, with 

 yellow flowers in the a.xils of the upper leaves. 



«■ * Leaves {except the uppermost in No. 9 and one of No. 11) compound. 

 9. C YTISUS. Leaves of 1 or 3 leaflets, or the green branches sometimes leafless ; stipules 

 minute or wanting. C'aly.K 2-lipped or 5-toothed. Keel straight or somewhat curved, 

 blunt, soon turned down. Style Incurved or even coiled up aRer the flower oiiens. 

 Pod Hat. Seeds with a fleshy or scale-hke appendage (strophiole) at the scar. Low 

 shrubby plants. 



10. L.VIU'KNUM. Leaves of .S leaflets; stipules inconspicuous or wanting. Calyx with 



'2 short Ups, the upper lip notched. Keel incurved, not pointed. Ovary and flat 

 pod somewhat stalked into the calyx. Seeds naked at the scar. Treis or shrubs, 

 with golden yellow flowers in long, hanging racemes. 



11. LUPIXU8. Leaves of several leaflets, in one species simple; stipules adherent to the 



base of the petiole. Flowers in a long, thic:c raceme. Calyx deeply 2-lipped. Corolla 

 of peculiar shape, the sides of the rounded standard being rolled backwards, and the 

 wings lightly cohering over and inclosing the narrow and incurved scythe-shaped or 

 sickle-shaped keel. Pod flat. Mostly herbs. 



§ 2. Herbs, never twining or tendril-bearing, with leaves of S leaflets (rarely more, 

 bat then digitate), their margins commonly more or less toothed (which is re- 

 markable in this family) ; stipules conspicuous and united loith the base of the 

 petiole (Lessons, p. 6G, Fig. ITT) ; stamens diiidclphous ; pod l-few-seetted, never 

 divided across into joints. 



ipinnately S-foliolate, as is seen by the end leaflet being Jointed with tlie com- 

 mon petiole above the side leaflets. 



12. MELILOTI'S. Herbage sweet-scented. Flowers small, in slender racemes. Corolla 



as in Medicago. Pod small, but exceeding the calyx, globular, wrinkled, closed, 1-2- 

 seeded. 



13. MEDICAGO. Flowers small, in spikes, heads, etc. Corolla short, not united with the 



tube of stamens. Pod curved or coiled up, at least kidney-sliaped. 



* » Leaves mostly digitate or palmately S-foliolate, all {with one exception) borne 



directly on the apex of the common petiole. 



14. TKIFOLIU.M. Flowers in heads, spikes, or head-like umbels. Calyx with slender or 



bristle-form teeth or lobes. Corolla slowly withering or becoming dry and permanent 

 after flowering ; the claws of all the petils (except sometimes the standard) more or 

 less united below with the tube of stamens or also with each other. Pod small and 

 thin, single-few-seeded, generally included in the calyx or the persistent corolla. 

 § :;. Herbsor woody plants, often twining but never tendril-bearing, ivith the leaves 

 not digitate, or even digitately S-foliolate (except in Psoralea), and the leaflets 

 not toothed. Stipules, except in Nos. 23, 2S, and *!, not united with the petiole. 

 { Here might be sought No. 51.) 



* Flowers {small, in spikes or Jieads) indistinctly or imperfectly papilionaceous. Pod 



very sm(dl and u.iuaily remaining closed, only \-'J.seeded. Calyx :. toothed, 

 persistent. Leaves odd-pinnate, mostly dotted with dark spots or glands. 

 -h I'etals 5, on very slender claws ; stamens mqnadclphous in a .tplit tube. 



15. PICTALOSTEMON". Herbs, with crowded leaves. Four petals similar, spreading, 



borne on the top of the tube of the stamens ; the fifth (answering to the standard) 

 rising from the boltom of the calyx, luid heart-shaped or oblong. Stamens only T). 



16. DALE.V. Herbs, as to our 8i)ecies. Flowers as in the last, but r.ather more papiliona- 



ceous, 4 of the petals borne on the middle of the tube of 10 stamens 



