816 ADOXACEAE 



FAMILY 124. ADOXACEAE. MOSCHATEL FAMILY. 



Herbs with scaly or tuberiferous rootstocks. Leaves basal and opposite 

 cauline, ternately compound. Flowers small, greenish, in terminal head-like 

 clusters. Hypanthium hemispheric, adnate to the ovary. Calyx-lobes 2 

 or 3. Corolla rotate, regular, 4-6-lobed. Stamens twice as many, inserted 

 in pairs in the tube: anthers 1-celled. Ovary 3-5-celled; styles 3-5-parted; 

 ovules 1 in each cell. Fruit a small drupe, with 3-5 nutlets. 



1. ADOXA L. MOSCHATEL, MUSK-ROOT. 

 Characters of the family. 



1. A. Moschatellina L. Stem erect, 5-15 cm. high; basal leaves 1-4, long- 

 petioled, ternately compound; divisions broadly ovate or orbicular, thin, gla- 

 brous, 3-cleft; stem-leaves a single pair, ternate; flowers 3-6; corolla of the ter- 

 minal flower 4- or 5-lobed, that of the others 5- or 6-lobed; drupe green. Mossy 

 woods: Hudson Bay Wis. la. Colo. Utah Mack. Submont. Subalv. Je- 

 Jl. 



FAMILY 125. LORANTHACEAE. MISTLETOE FAMILY. 



Mostly shrubby parasites, with green tissue and jointed branches, grow- 

 ing on woody plants. Leaves mostly opposite, sometimes reduced to green 

 scales. Flowers dioecious or monoecious, regular. Calyx entire-margined 

 or lobed. Corolla of 2-6 more or less united petals, often green and calyx- 

 like, or wanting. Stamens 2-6; anthers 2-celled or confluently 1-celled. 

 Gynoecium of a compound pistil, but 1-celled. Fruit a berry; seed solitary. 



Anthers 2-celled, opening by an apical pore or slit; berry globose; both staminate and 

 pistillate flowers usually 3-merous. 1. PHORADENDRON. 



Anthers 1-celled, opening by a transverse circular slit; berry compressed; staminate 

 flowers 3-merous, the pistillate ones 2-merous. 2. RAZOUMOFSKYA. 



1. PHORADENDRON Nutt. AMERICAN MISTLETOE. 



More or less fleshy shrubby dioecious or monoecious parasites. Leaves op- 

 posite, either petioled, with well developed blades or sometimes scale-like. Inflor- 

 escence axillary of several-jointed spikes. Flowers sessile, sunken in the rachis; 

 hypanthium enclosing the ovary. Calyx usually 3-lobed; lobes in the pistillate 

 flowers persistent on the fruit. Corolla wanting. Stamens 3, inserted at the 

 base of the calyx-lobes; anthers 2-celled, opening by an apical pore or slit. Ovary 

 1-celled, 1-ovuled; style short; stigma obtuse. Fruit a globose berry, with a 

 viscid mesocarp. 



Leaves reduced to scales; pistillate flowers 2 on each internode. 



Canescent; twigs terete; spike several-jointed. 1. P. caUfornicum. 



Glabrous; twigs bluntly 4-angled; spike 1-jointed. 2. P. juniperinum. 



Leaves with well developed blades; pistillate flowers 6 or more on each internode. 



3. P. Cockerellii. 



1. P. calif ornicum Nutt. Plant dioecious; internodes 1-2 cm. long, softly 

 canescent, becoming glabrate; scales spreading, 2 mm. long; spikes mostly soli- 

 tary, usually with about 4 joints, each with 2 pistillate or 4-6 staminate flowers; 

 bracts acute; fruit red, 3 mm. thick. Parasitic chiefly on leguminous trees and 

 shrubs, also on Covillea, Zizyphus, &c.: Calif. s Utah Ariz.; Sonora and L. 

 Calif. L. Son. 



2. P. juniperinum Engelm. Plant dioecious; internodes 0.5-1 cm. long, 

 glabrous; scales spreading, deltoid, 1-2 mm. long; spike solitary, 3 mm. long of 

 a single joint, with either 2 pistillate or 6 or 8 staminate flowers; bracts blunt; 

 fruit straw- or wine-colored, 3 mm. thick. Parasitic on species of Sabina: w Tex. 

 s Colo. Utah Ariz.; Chihuahua. Son. 



3. P. Cockerellii Trelease. Plant dioecious; internodes 2-4 cm. long, gla- 

 brate; leaf-blades elliptic to oblanceolate, obtuse, 3.5-5.5 cm. long, 1.5-2 cm. 



