592 KRAMERIACEAE 



2. Hoffmanseggia Drummondii T. & G. Stem branched at the base, the branches 

 more or less spreading, 10-20 cm. long, glabrous, much branched : leaves with 3 pinnae ; 

 leaflets usually 8-12, the blades oblong-cuneate or nearly oblong, 1.5-2.5 mm. long, obtuse, 

 not glandular-punctate : calyx glabrous or nearly so, except the ciliate margins of the 

 lobes; lobes narrowly oblong to linear-lanceolate, 3.5-4.5 mm. long: corolla 1-1.2 cm. 

 broad : pods narrow, about 2 cm. long. 



On plains or prairies, southern Texas. 



3. Hoffmanseggia Tex6nsis E. M. Fislier. Stem branched at the base, the branches 

 intricately branched, 15-30 cm. long, their gray bark finely jiubescent : leaves with 3 

 pinnae : leaflets 6-10, the blades mainly oblong, 1-2 mm. long : calyx finely pubescent or 

 nearly glabrous ; lobes narrow, 2-2.5 mm. long : corolla mainly less than 1 cm. broad : 

 pod narrow, about 1 cm. long. 



In rocky soil, southern Texas. 



4. Hoffmanseggia Jam^sii T. & G. Stem branched at the base, the branches erect 

 or ascending, 10-35 cm. long, finely pubescent and more or less glandular : leaves with 

 5-7 pinnae: leaflets approximate, 10-20, the blades oblong to ovate-oblong, 3-5 mm. long, 

 obtuse, glandular-punctate : calyx strigillose ; lobes narrowly oblong or linear-oblong, 7-9 

 mm. long : corolla 10-12 mm. wide : pods about 2 cm. long, nearly 1 cm. wide, glandular, 

 slightly curved along the upper edge. 



On plains and prairies, Kansas to Texas and New Mexico. 



5. Hoffmanseggia caudata A. Gray. Stem often branched at the base, the branches 

 ascending, 10-30 cm. long, glabrous : leaves with 7-9 pinnae : leaflets separated, 8-22, the 

 blades suborbicular to ovate, 2-5 mm. long, acute, prominently veined : calyx puberulent ; 

 lobes oval to ovate, 5-6 mm. long : corolla about 1.5 cm. wide : pods about 2 cm. long, 1 

 cm. wide, glandular. 



On plains, southern Texas. 



Family 17. KRAMERIACEAE Dumort. Krameria Family. 



Shrubs or perennial herbs, generally with prostrate or spreading rigid branch- 

 ing stems and silky pube.scent foliage. Leaves alternate, without stipules : 

 blades entire or trifoliate, relatively small. Flowers perfect, irregular. Calyx 

 of Jr-S petal like unequal sepals, deciduous. Corolla of 4-5 petals, shorter than 

 the sepals, the postei'ior with long claws, thin, their claws often united, the 2 

 anterior thick, sessile. Androecium of 3-4 stamens. Filaments united at the 

 base or as far as the middle. Anthers 2-celled : sacs opening by terminal pores. 

 Gynoecium of a single carpel. Ovary 1-celled or appai'ently 2-celled by the 

 intrusion of the placentae. Style simple. Stigma truncate or acute. Ovules 2, 

 collateral, pendulous, anatropous. Fruit indehiscent, woody, 1-celled, armed. 

 Seed usually solitarj\ Endosperm wanting. Embryo with thick cotyledons 

 including the radicle. 



*o 



1. KRAMERIA Loefl. 

 Characters of the family. 



Herbs : branches prostrate or decumbent. 1. K. secundi flora. 

 Shrubs : branches diffusely spreading. 



Plants canescent or somewhat tomentose. 



Spines on the fruit barbed. 2. K. canescens. 



Spines on the fruit not barbed. 3. K. ramosissima. 



Plants silky-strigillose. 4. A', parviflora. 



1. Krameria secundiflora DC. Herbaceous, from a stout underground stem, 

 foliage strigose. Stems ascending or spreading, 1-4 dm. long, branching : leaf-blades 

 oblanceolate, linear-oblong or narrowly linear, 1-3 cm. long, tipped with small spines, 

 sessile : peduncles 2-3 cm. long, slender, 1-flowered : pedicels much shorter than the pe- 

 duncles, subtended by 2 leaf-like bracts : flowers axillary : sepals ovate-lanceolate, 8-10 

 mm. long, acute : petals 5, the 3 upper with united claws : stamens 4, monadelphous : fruit 

 subglobose, 7-9 mm. in diameter, the stout spines retrorsely scabrous. 



In sandy soil, Kansas to Florida, New Mexico and Mexico. Spring. 



2. Kiamerii canescens A. Gray. Shrubby, tomentose-canescent. Stems spreading : 

 leaf-blades linear-lanceolate to linear, 0.5-2 cm. long, acute, sessile, straight or curved : 

 peduncles about 1 cm. long : pedicels about as long as the peduncles or shorter, subtended 

 by 2 bracts : flowers axillary : sepals lanceolate, nearly 1 cm. long, the smaller one some- 



