DICOTYLEDONOUS PLANTS 119 



1. Stamens with anthers of two forms. Leaves palmately com- 



pound. 

 Herbs. Leaves with many leaflets. Lupinus, VIII. 



Trees. Laburnum, IX. 



Low shrubs. Cytisus, X. 



2. Anthers aU alike except in No. 14. 



Leaves usually with 3 leaflets. Leaflets with fine teeth, 

 except in No. 14. 



(a) Pod coiled. Medicago, XL 



(b) Pod not coUed. Flowers in racemes. Melilotus, XII. 



(c) Pod not coiled. Flowers in heads. TrifoUum, XIII. 



(d) Leaflets entire. Psoralea, XIV. 



3. Leaves odd-pinnate, with more than 3 leaflets. 



(e) Low woody shrubs. Amorpha, XV. 

 (/) Tail twining shrubs. Wistaria, XVI. 

 (<7) Trees. Eobinia, XVII. 

 (h) Herbs. Astragalus, XVIII. 



4. Leaves pinnate, the midrib prolonged into a tendril. 



(i) Leaflets usually many pairs. Style slender, bearded 

 only at the tip or all round the upper portion. Pod 

 2-several-seeded. Vicia, XIX. 



(j) Leaflets few or several pairs. Style bearded along one 

 face only. Pod several-seeded. Lathyrus, XX. 



(^) Leaflets 1-3 pairs. Style enlarged above, grooved on 

 the back. Pod several-seeded ; seeds large, globular 

 or nearly so. Pisum, XXI. 



I. DESMAWTHUS, WiUd. 



Shrubs or perennial herbs; stems erect or diffuse, smooth. 

 Leaves abruptly twice-pinriate ; stipules small. . Flowers in 

 heads or spikes, on axillary peduncles, the upper perfect, the 

 lower often staminate or neutral. Calyx 5-toothed. Corolla 

 of 6 distinct petals or 5-cleft. Stamens 5-10, distinct. 

 Ovary nearly sessile, fiat, several-seeded.* 



