DICOTYLEDONOUS PLANTS 125 



Vm. PYR'OLA, Wintergreen 



Herbs with radical leaves and flowers nodding in racemes, 

 on scajjes. Calyx 5-lobed. Corolla with 5 incurved petals. 

 Stamens 10, usually declined. Anthej^s erect in hud, 2-horned 

 at base, but becoming inverted when the flowers expand. Style 

 declined or straight. Fruit a capsule opening down the 

 middle of the cell walls on the back. 



a. P. rotundifo'lia L. Leaves round, shining or dull, on long peti- 

 oles. Scapes from 6 in. to a foot high. Flowers white, pink or 

 rose-color, almost ^ in. in diameter. Anthers narrowed at top. 

 Style declined, with a collar at base of the stigma. In wet places 

 in the mountains, widely distributed. 



h. P. pic'ta Smith. Leaves orbicular, thick, veined or blotched ivith 

 white, oflen purplish beneath. Scapes about 6 in. high, 7-15-flowered. 

 Petals greenish white, longer than the sepals. Northern California 

 to Alaska. 



c. P. aphylla Smith. Leafless or icith a few small, poorly formed 

 leaves. Scapes reddish, 6 in. high. Flowers similar to the above, 

 rose-color. In deep woods from California to Washington. 



PRIMULAXE^. Primrose Family 



Herbs with perfect, regular flowers, parts of the calyx and 

 corolla 5 (sometimes 4, 6, or 8). Stamens equaling the lobes 

 of the corolla and opposite them, inserted on the tube of the 

 corolla. Pistil with a single style and stigma, the ovary 

 1-celled, with a globular central placenta. 



I. DODECA'THEON, Twelve Gods, Shooting Stars, Prairie Pointers, 

 Cyclamen 



Herbs with leaves clustered at the base of the scape. 

 Flowers showy, in simple, terminal umbels. Calyx 5-cleft, 

 ivith the divisio7is reflexed in flower, erect in fruit. Corolla 

 with an extremely short tube, an open throat, and 5 reflexed 

 narrow divisions, ivhich are ivhite, rose-color or purple. Sta- 

 mens inserted 07i the throat of the corolla, ivith short monadel- 

 phous fllaments, and long yellow or violet anthers conniving 

 around the long style and forming the pjoint of the flower. 



