124 SANTALACEAE. 



dioecious, axillary, spicate, bracted and small, solitary or several 

 in the axil of each bract; staminate flowers with a usually 3-lobed 

 globose or ovoid calyx with a sessile 2-celled anther at the base 

 of each lobe; pistillate flowers with a similar calyx adherent to 

 the inferior ovary; style short, obtuse or capitate; fruit a sessile 

 ovoid or globose fleshy berry. 



Phoradendron villosum Nutt. Plant much branched, greenish-yellow, 

 20-40 cm. high, the stout terete branches pubescent; leaves thick, oblanceolate 

 to nearly orbicular, 1-5 cm. long, obtuse, 3-nerved, villous or pubescent; 

 spikes slender, shorter than the leaves; berries white, 3-4 mm. in diameter. 



On oak trees, Willamette Valley and southward. The staminate flowers 

 have the odor of pond lilies. 



Family 31. SANTALACEAE. SANDAL WOOD FAMILY. 

 Herbs, shrubs or trees; leaves alternate or opposite, entire, 

 without stipules; flowers clustered or solitary, axillary or ter- 

 minal, perfect, monoecious or dioecious; calyx adnate to the 

 base of the ovary, 4-5-cleft; petals none; stamens as many as 

 the calyx-lobes and oppos te them; ovary 1 -celled; ovules 2-4; 

 fruit a drupe or nut with only one seed. 



155. COMANDRA. 



Glabrous erect perennial herbs, sometimes parasitic on the 

 roots of other plants; leaves alternate, oblong, oval, lanceolate or 

 linear, entire, pinnately veined; flow r ers perfect, terminal or 

 axillary, rarely solitary, cymose, bractless; calyx campanulate, 

 the base of its tube adnate to the ovary; limb 5-lobed; stamens 

 5, rarely 4, at the bases of the calyx-lobes and between the lobes 

 of the disk; fruit drupaceous, globose or ovoid, crowned by the 

 persistent calyx. 



Comandra umbellata (L.) Nutt. Stems branched, very leafy, 15-35 cm. 

 high; leaves oblong, acute, 2-3 cm. long, the midribs pale; cymes several- 

 flowered, clustered at the summit of the stem; fruit globose, tipped by the 

 persistent oblong calyx-teeth. 



In dry ground, rare in our limits. 



Family 32. ARISTOLOCHIACEAE. BIRTHWORT FAMILY. 



Low herbs or twining shrubs; leaves alternate or basal, petioled, 

 mostly cordate or reniform, without stipules; flowers axillary or 

 terminal, solitary or clustered, perfect, mostly large; calyx-tube 

 at least at the base adnate to the ovary, its limb 3-lobed, 6-lobed 

 or irregular; petals none; stamens 6-12, united with the style; 

 ovary partly or wholly inferior, mostly 6-celled ; ovules numerous 

 in each cavity; fruit a 6-celled capsule or berry; seeds ovoid or 

 oblong, angled or compressed. 



