FABACEAE 615 



much shorter than the tube : corolla pinkish or red, or almost white, 6-10 cm. long : pods 

 narrowly elongated-linear, 2-4 dm. long, each with a stout stipe and a slender beak. 



In sandy soil, southern peninsular Florida and Key West. Naturalized from the West Indies, 

 but originally from the East Indies. 



18. GLOTTIDIUM Desv. 



Annual caulescent herbs, often with very tall and branching stems. Leaves alternate : 

 blades equally pinnate : leaflets numerous, the blades entire. Flowers perfect, in axillary 

 racemes. Calyx pedicelled : lobes nearly equal. Corolla yellow or reddish purple : stand- 

 ard with a blade often broader than high, short-clawed : keel-petals coherent above the 

 middle. Stamens 10, diadelphous (9 and 1). Anthers similar or nearly so. Ovary 

 stalked. Style incurved at the apex. Ovules commonly 2. Pod relatively short, flat- 

 tened, narrowed at both ends, wingless, dehiscent, the outer and inner walls distinct. 

 Seeds 2, enclosed in the bladder-like inner walls of the pod. 



1. Glottidium vesicarium (Jacq. ) Desv. Foliage glabrous. Stems 1-4 m. tall y 

 widely branching : leaves pinnate ; leaflets 24-52, the blades oblong, 1.5-4 cm. long, mu- 

 cronate, racemes shorter than the leaves : pedicels 8-12 mm. long : calyx campanulate ; 

 lobes triangular, much shorter than the tube : corolla yellow, tinged with purple in drying ; 

 standard reniform about 1 cm. broad : pods oblong, 5-8 cm. long, acuminate at both ends, 

 the stipe 1-1.5 cm. long. 



In damp soil. North Carolina to Florida and Texas. Summer. A form from middle Florida, with 

 black-purple corollas, is O. vesicarium atrorubrum (Nash) Small, f O. Floridanum atrorubrum Nash.l 



19. DAUBENTONIA DC. 



Shrubs, with branching stems. Leaves alternate, with oblong stipules : blades equally 

 pinnate : leaflets numerous. Flowers perfect, in simple axillary racemes. Calyx pedi- 

 celled : tube campanulate : lobes 5, minute. Corolla yellow : standard with a short claw 

 and rounded blade : wings and keel-petals rather similar, obtuse. Stamens 10, diadelphous 

 (9 and 1) ; tube and free filament geniculate at the base: anthers all similar. Ovary 

 stalked. Style slender, glabrous. Ovules several. Pod 4-sided and 4-winged, leathery, 

 indehiscent. Seeds several, separated by partitions. 



1. Daubentonia longifolia (Cav. ) DC. A shrub or small tree. Leaves pinnate : 

 leaflets 12-60, the blades oblong, 1-2.5 cm. long, mucronate : racemes shorter than the 

 leaves : pedicels 5-10 mm. long, curved at the apex : calyx campanulate ; lobes acute, 

 ciliate, much shorter than the tube : corolla scarlet or paler : standard with a blade 13-18 

 mm. broad : pods linear-oblong, 5-7 cm. long, 4-winged, the stipe 1-1.5 cm, long. 



In sandy soil. Florida to Texas and Mexico. Summer. 



20. GEOFRUMNONKvdb.i 



Perennial tufted herbs, with decumbent or ascending stems. Leaves alternate, the 

 stipules distinct and nearly free from the petiole : leaflets numerous, the blades entire, not 

 notched. Flowers perfect, in dense short racemes. Calyx deeply campanulate or nearly 

 cylindric : lobes nearly equal. Corolla white or purple, or rarely ochroleucous : standard 

 with a rather narrow partially erect notched blade, much longer than the wings : wings 

 longer than the keel -petals. Stamens 10 : filaments diadelphous : anthers alike. Ovary 

 sessile. Ovules numerous. Pod globular to nearly fusiform, fleshy becoming spongy, 

 2-celled, with the partition formed by the intruded and modified lower suture meeting the 

 upper suture. Seeds numerous. 



Pods pubescent. 



Pods curved, over 2 cm. long, wrinkled, gradually pointed. 1. O. Tennesseense. 



Pods straight, less than 2 cm. long, barely wrinkled, abruptly pointed. 2. O. Platten.se. 



Pods glabrous. 



Pods oblong-ovoid, acuminate. 3. G. pachycarpum 



Pods globular, pointless. 



Calyx woolly : corolla white or ochroleucous. 4. G. Mexicanum. 



Calyx strigillose : corolla purple. 5. G. crassicarpum. 



1. Geoprumnon Tennesseense (A. Gray) Bydb. Plant villous-hirsute. Stems 

 usually branched at the base, the branches ascending or spreading, often stout, 1-3 dm. 

 long : leaves 5-10 cm. long : stipules membranous, broadly ovate, often 1 cm. long ; leaf- 



1 This genus, and the following Astragalus segregates, revised by Dr. Per Axel Rydberg. 



