322 LOBANTHACE^E. 



ous, deflexed, silvery without, pale yellow within, fragrant, the tube broadly 

 oval, the limb f unnelform : fruit globose-ovoid, dry and mealy, edible. From 

 Utah to the Upper Missouri and eastward to Minnesota and Canada. 



2. SHEPHERD I A, Nutt. BUPFALO-BERBY. 



Staminate perianth 4-parted, the lobes spreading. Stamens alternate with 

 as many lobes of a thick disk ; filaments free. Pistillate flowers with oblong- 

 tubular perianth; limb 4-cleft, erect, the throat closed by the lobes of the disk. 

 Fruit berry-like, with a smooth shining compressed seed.' Flowers small 

 (the staminate larger), shortly pedicellate. 



1. S. argentea, Nutt. Somewhat spiny shrub, 5 to 18 feet high: leaves 

 silvery on both sides, mostly oblong, obtuse, cuneate at base : fruit a smooth ovoid 

 scarlet berry, acid and edible, nearly sessile. East of the Sierra Nevada to 

 the Saskatchewan, and southward in the mountains to New Mexico. 



2. S. CanadensiS, Nutt. Shrub 3 to 6 feet high, the branchlets, young 

 leaves, yellowish flowers, etc., covered with rusty scales : leaves elliptical or ovate, 

 nearly naked and green above, silvery downy as well as scurfy with rusty scales 

 beneath : fruit yellowish-red, insipid. From the Columbia River eastward 

 across the continent, and in the mountains southward to New Mexico. 



ORDER 68. LORANTHACEJE. 



Evergreens, parasitic on shrubs or trees, dull yellowish-green or 

 brownish, with diehotomous branches and swollen joints, the opposite 

 thick and coriaceous e'xstipulate and entire leaves reduced to mostly con- 

 nate scales : flowers dioecious, of 2 to 5 sepals coherent at base : anthers 

 as many as the sepals and inserted upon them: ovary inferior, 1 -celled: 

 fruit a berry with glutinous endocarp. Flowers small and inconspicu- 

 ous, greenish. 



1. Phoradendron. Flowers globose, mostly 3-lobed. Anthers 2-celled, opening by 2 



pores or slits : pollen-grains smooth. Berry globose, pulpy and semi-transparent. 



2. Arceuthobium. Flowers mostly compressed ; the staminate usually 3-parted, the 



pistillate 2-toothed. Anthers a single orbicular cell, opening by a circular slit ; pollen 

 spinulose. Berry compressed, fleshy. 



1. PHORADENDRON, Nutt. MISTLETOE. 



Flowers immersed in the rhachis of jointed spikes. Parasitic on branches 

 of various kinds of trees : spikes single or in pairs in the axils of opposite 

 leaves, the lowest joint sterile, the others bearing solitary or several flowers on 

 each side. Flowering in February or March, and maturing its fruit the next 

 winter. 



1. P. juniperinum, Engelm. Glabrous, stout, densely branched, 6 to 9 

 inches high : branches terete, the ultimate branchlets quadrangular : scales 

 broadly triangular connate or distinct, ciliate : staminate spikes of a single 



