THEKMOPSIS. 



LEGUMINOS^. 121 



leaves and small flowers in pedunculate dense terminal spikes or 

 heads; petals 5, on filiform claws that are united to the stamen-tube 

 the upper one free, all deciduous: stamens 5, monadelphous: ovary 

 with two collateral ovules: pods 1-seeded. 



Tribe vi. Astragaleje. Erect or decumbent herbaceous, rare- 

 ly suffrutescent, plants with unequally pinnate leaves and axil- 

 lary or radical, racemose or&picate inflorescence. Stamens diadel- 

 phous (9 and 1). Pods 1 -celled or often spuriously 2-celled by 

 the introflexion of one or both sutures, dehiscent, several-seeded 

 or rarely 1-2-eeeded. Radicle incurved. 



11. astragalus. Unarmed herbs with unequally pinnate leaves without 

 tendrils and axillary spikes or racemes of comparatively small flow- 

 ers: herbage neither glandular nor dotted: pods various, often 

 coriaceous and turgid, or thin and bladderly-inflated, or thin and 

 flat, more or less 2-celled by the intrusion of the dorsal suture: keel 

 obtuse. 



12. Oxytropis. Unarmed herbs or sometimes suffruticose plants, with 

 unequally pinnate leaves: the flowers spicate on axillary or radi- 

 cal peduncles: pods partly 2-celled by the introflexion of the pla- 

 cental suture: keel with a subulate point. 



13. Glycyrrhiza. Glandular-viscid perennials with unequally pinnate 

 leaves and flowers in peduncled axillary spikes: pods short, com* 

 pressed, prickly, indehiscent, few-seeded. 



Tribe vii. Hedysare^e. Herbs or shrubs Avith pinnate or 

 simple leaves, the flowers in axillary or terminal spikes, racemes 

 or umbels. Stamens 10, monadelphous or diadelphous. Pods 

 usually transversely divided into 1-seeded indehiscent joints. 



14. Hedysarum. Herbs with unequally pinnate leaves, the flowers in 

 axillary or terminal racemes: keel obliquely truncate, longer than 

 the wings: stamens diadelphous: pods of several 1-seeded joints 

 connected by their middle. 



Tribe viii. Vicie.e. Herbs with abruptly pinnate leaves, the 

 common petiole not articulated with the stem, produced at the 

 apex into a bristle or tendril, the flowers in axillary racemes. 

 Stamens 10, diadelphous. Pods not jointed, dehiscent. Cotyle- 

 dons remaining under ground and unchanged in germination. 

 Radicle inflexecl. 



15. Vicia. Weak herbs with stems climbing by tendrils which termin- 

 ate the pinnate leaves, and 1— -several-flowered axillary peduncles. 

 Style bent upward at the apex and villous under the stigma on the 

 under or outer side. 



16. Lathyrus. Herbs clinging by tendrils which terminate the pinnate 

 leaves and few— several-flowered axillary peduncles: style bent at 



right angles to the ovary and villous in a line on the inside. 



Tribe 1 Podalyriex Benth. B. & H. Gen. i, 437. Mostly herbs 

 with simple or digit ately trifoliolate, rarely many-foliolate, leaves, 

 and papilionaceous flowers. Stamens 10, free, or slightly united at 

 base. Pod dehiscent. Radicle incurved or inflexed . 



1 THERMOPSIS R. Br. in Ait. Hort. Kew. e. 2. iii, 3. 



Stout perennial herbs with erect stems, digitatelv trifoliolate 



