156 BORAGINACEAE 



Family 106. BORAGINACEAE Liudl. 

 Herbs with alternate entire leaves and perfect, usually regular flowers. 

 Divisions of calyx and corolla five each. Stamens five, each inserted on 

 the tube of the corolla and alternate with its lobes. Ovary deeply 

 4 lobed, in fruit forming four 1-seeded nutlets Style solitary. Stigmas 

 one or two. 



Corolla regular. 



Nutlets armed with pricklets. 



Pricklets covering the nutlets. 1. Cynoglossum. 



« Pricklets on the margin or back. 2. Lappula. 



Nutlets unarmed. 



Nutlets attached to receptacle just above their 



base : flowers blue. 3. Mertensia. 



Nutlets attached by their base to receptacle : 

 flowers not blue. 

 Styles included. 



Racemes not leafly-bracted. 4. My'osotis. 



Racemes leafy-bracted. 5. LiTHOSPERMUM. 



Styles exserted. 

 Corolla lobes erect, acute. 6, Onosmodium. 



Corolla lobes spreading. 7. Symphytum. 



Corolla irregular. 8. EcHiUM. 



1. CYNOGLOSSUM L. 

 Corolla funnel-form, its throat closed by five scales. Nutlets attached 

 laterally, spreading. 



1. C. officinale L. Hound'.s Tongue. Pubescent biennial, 2°-4° 

 high : leaves oblong to lanceolate, the lower sleuder-petioled, the upper 

 sessile: corolla 4''-5'^ broad, reddish-purple. — Not uncommonly intro- 

 duced in fields. May-July. 



2. LAPPULA Moench. Stickseed. 

 Corolla salver-form, its throat closed by five small scales. Nutlets 

 attached laterally, erect. 



Leaves linear to linear oblong. 



Pricklets on margin of nutlets in two rows. 1. L. Myomtis. 



Pricklets on margin of nutlets in one row. 2. L. Texana. 



Leaves ovate-oblong. 3. L. Virginiana. 



1. L. Myosotis Moench. Annual, l°-2° high, hirsute-pubescent : 

 flowers white or blue : pricklets in two rows on the margins of the nut- 

 lets. — Rarely found in waste places around Kansas City. May-July. 



2. L. Texana (Scheele) Britton. Erect or spreading annual, 4'-20' 

 high, hirsute-pubescent: flowers white or blue: prickles in one row on 

 the margins of the nutlets : pricklets sometimes united into a cup. — 

 Sparingly adventized along railroads from Kaiusas City to Courtney and 

 Atherton. May-June. 



3. L. Virginiana (L. ) Greene. Beggar's Ticks. Biennial, 2°-4° 

 high, strigose-hirsute : radical leaves round-ovate : flowers white : fruit- 



