Jones: Flora of Illinois, 133. Boraginaceae 213 



3. Phacelia Juss. 

 1. Stamens longer than the corolla, the filaments pilose; corolla blue, about 1 

 cm. long, appendaged within, the lobes entire; inflorescence glandular, 

 loosely many-flowered; plants biennial; moist thickets and along streams, 



s. 111. Apr.-June P. bipinnatifida Michx. 



1. Stamens not longer than the corolla, the filaments glabrous; corolla without 



appendages; inflorescence not glandular; plants annual. 



2. Corolla about 4 mm. long, the lobes entire; calyx-lobes pubescent on the 



back; racemes 2-5-flowered; reported from Mt. Carmel, Wabash Co., 



by Schneck, and by Gleason from Fall Creek, Adams Co. [P. covillei 



Wats.} P. ranunculacea (Nutt.) Constance 



2. Corolla 6-7 mm. long, the lobes fringed; calyx-lobes glabrous on the back, 

 the margins ciliate; racemes 10-20-flowered, strongly 1 -sided; moist 



woods and thickets, usually in alluvial soil, local. May-June 



P. purshii Buckl. 



4. Hydrolea L. 



H. affinis Gray. Wet ground in woods, or in shallow ponds, s. 111., rare; 

 Union Co., Bre7idel in 1860; Pulaski Co., Brendel in 1860; "S. 111." Vasey. 

 June-Aug. 



133. Boraginaceae Lindl. — Borage Family 



I. Plants glabrous; corolla blue, tubular-funnelfcrm ; nutlets wrinkled when dry 



4. Meriensta 



1. Plants pubescent. 



2. Upper leaves long-petioled ; flowers small, white, in 1 -sided spikes; style terminal 



1. Heliolroplum 



2. Upper leaves sessile or short-petioled ; flowers pedicelled ; style arising between the 

 lobes of the ovary. 

 3. Racemes bractless. 



4. Leaves small; corolla salverform, the tube very short; nutlets smooth 



5. M^osolis 



4. Leaves large, usually more than 2 cm. wide; plants tall and coarse. 



5. Nutlets wrinkled 8. Symphytum 



5. Nutlets prickly 2. Cvnoglossum 



3. Racemes bracteate, each flower borne in the axil of a bract. 

 6. Flowers regular. 



7. Stem-leaves petioled; nutlets with prickles 3. Lappula 



7. Stem-leaves sessile; nutlets not prickly. 



8. Corolla salverform, the lobes rounded, spreading; style included 



6. Lithospermum 



8. Corolla tubular, the lobes erect, acute; style long-exserted.... 7. OnosmoJ/um 

 6. Flowers blue, more or less irregular; stamens exserted 9. Echium 



1. Heliotropium L. — Heliotrope 

 H. indicum L. Waste places, occasional in the s. half of the state; adv. 

 from India. June-July. 



2. Cynoglossum L. — Hound's-tongue 



l.Stem pilose; plant biennial; lower leaves spatulate; inflorescence many- 

 flowered, leafy; corolla reddish or white; pastures and waste places, com- 

 mon; nat. from Eur. June. Common Hound's-tongue C. officinale L. 



