MAPLE FAMILY 217 



PHORADENDRUM Nuttall 1849 MISTLETOE 



(Gr. phora, borne, dendron, wood, from its habit) 



PL 33, fig. 12. 



Sepals usually 3, united into a globular calyx, grown to the ovary, 

 petals none, stamens 3, berry 1-seeded; flowers greenish, dioecious, in 

 axillary spikes; leaves reduced to triangular scales; parasites. 

 Stems round or square, 4-12 in. high; berry whitish 

 or reddish P. juniperinum 



RAZUMOVSKYA Hoffmann 1808 



(Named for Count Razumovski) 



PL 33, fig. 13. 



Sepals 3 in the stamen flower, 2 in the pistil flower, petals none, 

 stamens usually 3, berry 1-seeded; flowers greenish, dioecious, solitary, in 

 apparent spikes or panicles; leaves reduced to united scales; parasites. 



1. Parasitic on pines 



a. On lodgepole pine P. americdna 



b. On limber pine P. cyanocdrpa 



c. On pinyon P. divaricdta 



d. On yellow pine P. cryptopoda 



2. Parasitic on Douglas fir P. Douglasi 



SAPINDALES MAPLE ORDER 

 ACERACEAE MAPLE FAMILY 



Sepals 5, united, petals 5, or none, stamens 4-12, ovary 2-lobed, 2- 

 celled, styles 2, fruit of 2 winged, 1-seeded samaras; flowers polygamous 

 or dioecious, in axillary or terminal racemes or cymes ; trees or shrubs with 

 opposite simple and lobed or odd-pinnate leaves. 



ACER Linne 1753 MAPLE, BOXELDER 

 (Lat. acer, maple-tree) 



PL 34, fig. 1, 2. 

 Characters of the family. 



1. Leaves of 3-5 ovate toothed or lobed leaflets; 



flowers dioecious A. negundo 



2. Leaves simple, 3-lobed or parted, or some cut in- 



to 3 leaflets; flowers polygamous 

 a. Wings of fruit broad; flower cluster stalked A.gldbrum 



