OP THE WASATCH REGION 71 



2. D. pauciflorum (Durand) Greene. (D. vulgare (Hook) 

 Piper; D. meadia pauciflorum Durand.) Leaves erect or nearly 

 so. Bracts lanceolate. Filaments united into a yellow tube 

 half as long as the anthers. Anthers purple. Capsule nearly 

 cylindrical, splitting from the acute summit by 5 short teeth. 

 Wet soil. May-June. 



ORDER GENTIANALES. 



OLEACE^E. Olive Family. 



Shrubs or trees with opposite arid exstipulate leaves. 

 Inflorescence panicled, racemose or fascicled. Flowers 

 monoecious, dioecious, polygamous or perfect. Calyx 

 usually 4-cleft. Corolla of 4 more or less united lobes, 

 or sometimes wanting". Stamens 2, or sometimes 3 or 

 4. Pistil 1, with a 2-celled ovary, ripening into a 

 samara, capsule, drupe or berry. 



1. FRAXIJVTJS. Ash. 



Trees with petioled, odd-pinnate leaves from terminal buds. 

 Inflorescence axillary; densely panicled or racemose. Flowers 

 greenish; appearing before or with the leaves. Calyx small 

 and 4-cleft; toothed or entire, or wanting. Petals 4, or want- 

 ing. Anthers large. Style 1; stigma 1, 2-cleft. Fruit an 

 oar-like samara, containing a single seed. 



1. F. pennsylvanica lanceolata (Borkh.) Sarg. (F. lanceolata 

 Borkh.; F. viridis Michx. f.) Green Ash. Glabrous throughout; 

 usually not exceeding 60 ft. in height. Leaflets 5-9, often 

 wedge-shaped at base and serrate above; bright-green on both 

 sides. Flowers dioecious. Anthers linear-oblong. Calyx per- 

 sistent in fruit. Petals none. Fruit 1-2 inches long; the 

 fruit-body spindle-shaped, the wing extending upward to above 

 its middle, slightly notched at apex. Cultivated. April-May. 



ASCLEPEDIACE^. Milkweed Family. 



Perennial herbs usually with a milky juice, entire 

 exstipulate leaves, and umbellate inflorescence. Flow- 

 ers regular and perfect. Calyx 5-lobed, reflexed. 

 Corolla of 5 united lobes. A corona of 5 parts, called 

 hoods (usually colored like petals), is between the 

 corolla and the column of stamens, and is adnate either 

 to the corolla or the stamen-column. Filaments 5, short 

 and stout; monadelphous, or rarely distinct; borne on 

 base of corolla. Anthers tipped by a membrane; 2- 

 celled, e/aeh cell containing a waxy mass of pollen 



