OF THE WASATCH REGION 47 



Pistil 1; ovary 1-celled with a single parietal placenta. 

 Fruit a legume or rarely a loment. 



Flowers regular; thorny trees 1. Gleditsla 



Flowers irregular. 



Leaves simple 8. Astragalus 



Leaves palmately compound. 



'Stamens monadelphous; leaflets 5-11 2. Lupinus 



Stamens diadelphous; leaflets normally 3.. 3. Trifolium 

 Leaves pinnately-compound. 

 Leaflets 3. 



Flowers blue or purple 4. Medlcago 



Flowers white 5. Melilotus 



Leaflets more than 3. 

 Leaves odd-pinnate. 



Trees 6. Roblnla 



Herbs. 



Foliage not glandular-dotted; pod 



not hooked. 

 Keel longest, wings shortest; 



fruit a loment. ... 7. Hedysarum 

 Standard longest, keel shortest 

 or at least not longer 

 than wings; fruit a 



legume 8. Astragalus 



Foliage glandular-dotted; fruit a pod 



with hooked prickles.. 9. Glycyrrhlza 

 Leaves tendril-pinnate. 



Style slender; hairy only near the 



stigma 10. Vlcia 



Style flattened; hairy on the inner 



side 11. Lathyrus 



]. GL.EDITSIA. (Gleditschia.) Honey Locust. 



Large thorny trees. Leaves large; abruptly once or twice 

 pinnately-compound. Inflorescence axillary; racemose. Flowers 

 polygamous; greenish; regular or nearly so; inconspicuous. 

 Calyx short; 3-cleft. Petals as many as the sepals; perigynous; 

 the two lower slometimes united. Stamens 3-10, distinct; 

 perigynous. Fruit a dark-brown, flat, somewhat curved 

 legume; 1-many seeded. 



1. G. triaoanthos L,. A tree sometimes reaching a height of 

 140 ft.; bark of trunk rather rough, that of branches smooth. 

 Thorns branched or simple. Leaves petioled; fascicled and 

 once-pinnate on the old growth, and alternate (%) and bi- 

 pinnate on the season's growth. Inflorescence in spicate, 

 drooping racemes, on growth of preceding year. Fruit strap- 

 shaped, many-seeded; twisted when mature; 1-1% ft. long; 

 with a sweet, greenish pulp between the seeds. May-July. 

 Cultivated. 



2. I.UP1NUS. Lupine; Quaker-Bonnets. 



Herbs. Leaflets entire. Inflorescence terminal; racemose 

 or spicate. Flowers showy, bracteate. Calyx deeply 2-lipped. 

 Wings united above, enclosing the keel; sides of standard 

 reflexed. Stamens 10, monadelphous; with anthers of 2 forms 

 (round and^ oblong). Style incurved; stigma bearded. Ovary 

 sessile. Legume flattened, leathery. 



