98. Oleaceae 181 



60-90 cm tall; ca])sules 5-6 iniri lont; ; moist ground, 



common thnnis^hout 111. June-Aut^ L. ciliata L. 



10. Petioles glabrous or nearly so; blades 2-6 cm long; corolla- 

 lobes 3-5 mm long; stems becoming decumbent and 

 often rooting at the nodes; capsules about 3 mm long; 

 swampy woods, s. 111. Aug L. radicaus Hook. 



9. Dodecatheon L. — Shooting-star 

 1. Leaf-blades oblanceolate, tapering into the petiole. 



2. Mature capsules ellipsoid, thick-walled, reddish-brown; anthers 

 7-10 mm long; corolla lilac to white; leaves often reddish at 

 base; meadows, hillsides, or along railroads throughout 111. 



May-June D. rneadia L. 



2. Mature capsules cylindrical, thin-walled, light brown; anthers 

 5-7 mm long; corolla rose-purple; leaves pale bluish-green, 

 not reddish at base; bluffs of the Mississippi River in Carroll 



and Jo Daviess counties D. amethystinum Fassett 



1. Leaf-blades broadly ovate, abruptly contracted at the base; corolla 

 dark piu'ple or rarely white; rich woods and rocky ledges, 

 southern 111., rare D. frenchii (Vasey) Rydb. 



98. Oleaceae Lindl. — Olive Family 



1. Leaves compound; fruit a samara 1. Fraxinus 



1. Leaves simple; fruit a capsule, drupe, or berry. 



2. Leaves finely serrulate 2. Forestiera 



2. Leaves entire ; introd. shrubs. 



3. Leaves elliptical- to ovate-lanceolate; fruit a black berr>'-like drupe 



3. Ligustrum 



3. Leaves ovate; fruit a capsule 4. Syringa 



\. Fraxinus L. — Ash 

 1. Petioles velvety-pubescent; calyx evident on the fruit; wing of the 

 samara extending down the sides; twigs terete, pubescent when 

 young. 

 2. Samara 2.5-5 cm long, 5-7 mm wide, the body terete; calyx 1-2 

 mm long; leaflets serrate or entire, acute at the base; leaf- 

 scars nearly straight at the top; moist ground, local. Red Ash 

 F. pennsylvanica Marsh. 



2. Samara 5-7 cm long, about 1 cm wide, the body flattened; calyx 



3-6 mm long; leaflets usually entire, the lower surface light 

 green; leaf-.scars deeply notched at the top; wet ground, local- 

 ly in the s. part of the state. Pumpkin Ash 



F. tomentosa Michx.f. 



1. Petioles glabrous or nearly so; twigs glabrous. 



3. Calyx evident on the fruit; body of the samara terete or nearly 



so; leaflets 5-9, commonly 7, usually more or less petiolulate; 

 twigs terete. 



