336 CONTRIBUTIONS FEOM THE NATIONAL HEEBAEIUM. 



69. KRAMEEIACEAE. Krameria Family. 



1. KRAMERIA Loefl. 



Low herbaceous or woody perennials with prostrate or widely spreading stems and 

 small silky-pubescent leaves; leaves alternate, exstipulate, entire; flowers jserfect, 

 crimson, irregular; calyx of 4 or 5 unequal petaloid sepals, deciduous; corolla of 4 or 

 5 petals shorter than the sepals, irregular, the posterior petal clawed, sometimes adnate, 

 the anterior thick, sessile; stamens 3 or 4, the filaments luiited at the base; pistil 

 simple; fruit an indehiscent spiny globose 1 -seeded pod. 



KEY TO THE SPECIES. 



Herb with prostrate branches ] . K. secundijiora . 



Shrub with diffuse branches 2. K. glandulosa. 



1. Krameria secundiflora DO. Prodr. 1: 341. 1824. 

 Krameria lanceolata Torr. Ann. Lye. N. Y. 2: 168. 1827, 

 Type locality: Mexico. 



Range: Kansas and Florida to New Mexico, south into Mexico. 

 New Mexico: Mangas Springs; Tucumcari; Carrizozo; Perico Creek; Pajarito Val- 

 ley; Roswell; San Andreas Mountains. Plains, in the Upper Sonoran Zone. 



2. Krameria glandulosa Rose & Painter, Contr. U. S. Nat. Herb. 10: 108. 1906. 

 Krameria parvifolia Benth. err. det. various authors. 



Type locality: Near El Paso, Texas. 



Range: California and Utah to western Texas, southward into Mexico. 



New Mexico: Mesa west of Organ Moimtains; Buchanan. Dry, sandy hills and 

 mesas, in the Lower Sonoran Zone. 



A very common and rather handsome plant on the dry mesas of southern New 

 Mexico. It is a low, densely branched shrub 30 cm. high or less, blooming in early 

 spring. 



70. FABACEAE. Pea Family. 



Herbs or shrubs, sometimes trees, with simply compound or rarely simple, alternate, 

 stipulate leaves; flowers papilionaceous; calyx of 5 more or less united sepals; petals 

 5 or fewer, irregular, the upper petal larger than the others and inclosing them in bud, 

 the twa lateral ones (wings) oblique, the lower two more or less coherent by their an- 

 terior edges and forming the keel; stamens mostly 10, monadelphous, diadelphous, or 

 distinct; fruit a legume, 1-celled (2-celled in som.e Astragali), containing 1 to many 

 seeds. 



KEY to the genera. 



Stamens distinct. 



Leaves palmately trifoliolate; flowers yellow 1. Thermopsis (p. 338). 



Leaves odd-pinnate; flowers not yellow. 



Herbs; seeds not red 2. Sophora (p. 339). 



Shrub; seeds bright red 3. Broussonetia (p. 339). 



Stamens monadelphous or diadelphous. 



Anthers of 2 lands; stamens monadelphous; leaves 

 palmately compound. 



Stipules not decurrent; pods flattened 5. Lupinus (p. 340). 



Stipules, at least the upper ones, decurrent; 



pods inflated 4. Crotalaria (p. 339). 



Anthers all alike; stamens diadelphous (9 and 1), or 

 sometimes only 5; leaves usually pinnately 

 compoimd, rarely palmate. 



