350 Karl M. Wiegand and Arthur J. Eames 



2. H. canadense L; Water-leaf. 



In localities similar to the preceding, but in deeper, cooler woods and in soil with 

 more humus ; frequent. June 20-July 10. 



Negundo Woods (£>.); Six Mile Creek, in Beech Woods and vicinity (£>.!); 

 woods near Mud Creek Swamp ; "woods near Freeville, McLean, Locke Pond, Danby 

 and elsewhere" (D.) ; McLean Bogs; Taughannock Gorge; Salmon Creek; Paine 

 Creek; Howland Island; low woods near Stark Pond. 



S. w. Vt. and w. Mass. to Ont. and III., southw. to N. C. and Ky. ; rare or absent 

 on the Coastal Plain. 



108. BORAGINACEAE (Borage Family) 30 



a. Flowers regular. 



b. Nutlets armed with barbed prickles. 

 c. Nutlets depressed, spreading, covered with prickles. 1. Cynoglossum 



c. Nutlets erect, barbed on margins or on the back. 

 d. Pedicels recurved or reflexed in fruit; nutlets with a ventral keel on the 

 upper half only, attached by a large oblique submedial ovate or deltoid 

 areola ; gynobase broader than tall ; style shorter than the nutlets ; plants 

 biennial or perennial. 2. Hackelia 



d. Pedicels erect ; nutlets narrowly attached all along the well-developed medial 

 ventral keel ; gynobase five to ten times taller than broad ; style surpassing 

 the nutlets ; plants annual. 3. Lappula 



b. Nutlets unarmed. 

 c. Throat of corolla closed by scales; large coarse plants. 4. Symphytum 

 c. Throat of corolla without scales, sometimes with folds jr crests. 

 d. Racemes without bracts; corolla salver-form. 5. Myosotis 



d. Racemes bracted; corolla tubular to salver-form. 



e. Corolla large, showy, blue; nutlets attached just above the base. 



6. Mertensia 

 e. Corolla smaller, white or yellow; nutlets attached strictly at the base. 

 /. Lobes of corolla spreading, rounded. 7. Ltthospermum 



/ Lobes of corolla erect, acute. 8. Onosmodium 



a. Flowers irregular, blue, showy. 9. Echium 



1. Cynoglossum (Tourn.) L. 



a. Corolla reddish purple; plant stout, leafy to the summit. 1. C. officinale 



a. Corolla pale blue; plant, and especially the raceme, slender, mostly leafless above. 



2. C. boreale 



1. C. OFFICINALE L. HoUND's-TONGUE. 



Rich gravelly pasture lands and the borders of thickets, in more or less calcareous 

 soils ; frequent. June-July. 



Common in the McLean region, frequent in gravel about the larger ravines of the 

 basin, and occasional on the richer soils e. of Cayuga Lake; elsewhere rare or absent : 

 Six Mile Creek, near Amphitheater; Fall Creek, e. of Forest Home; Willets; near 

 Paine Creek; Union Springs; Black Creek; Howland Island; and elsewhere. 



Que. and Ont. to Man., southw. to S. C, Ala., Kans., and Mont. Naturalized from 

 Eurasia. 



2. C. boreale Fernald. (C Virginicum of Cayuga Fl.) Wild Comfrey. 

 Woodlands, in thin dry sandy and gravelly soils in noncalcareous districts; infre- 

 quent. June 10-July 10. 



80 Anchusa azurea Mill. {A. italica Retz.) is occasionally found near clumps and in waste places. 

 AsPerugo procumbens L. was found in 1885 near the East Hill schoolhouse (F. V. Coville, D), 

 ana Borago officinalis L appeared on the C. U. campus in 1878 and in 1880 (D.). 



