76 



BORAGINACEAE. 



Vol. J 1 1. 



i. Cynoglossum officinale T. 



noble. Canadian or dog-bur. Sheep-lice. 



Hound's-tongue. Gipsy Flower. Fig. 3508. 



Cynoglossum officinale L. Sp. PI. 134. 1753. 



Biennial, pubescent; stem erect, leafy to 

 the top, stout, usually branched, iJ-3 

 high. Basal and lower leaves oblong or 

 oblong-lanceolate, slender-pctioled, some- 

 times obtuse, 6-12' long, 1-3' wide; upper 

 leaves lanceolate, acute or acuminate, ses- 

 sile, or the uppermost clasping; racemes 

 several or numerous, bractless or sparingly 

 bracted, simple or branched, much elon- 

 gated in fruit; pedicels 3"-6" long; calyx- 

 segments ovate-lanceolate, acute; corolla 

 reddish-purple or rarely white, about 4" 

 broad ; fruit pyramidal, about 5" broad, 

 each of the 4 nutlets forming a side of the 

 pyramid, flat on their upper faces, mar- 

 gined, splitting away at maturity, but hang- 

 ing attached to portions of the subulate 

 style. 



In fields and waste places, Quebec and On- 

 tario to Manitoba, South Carolina, Alabama, 

 Kansas and Montana. Often a troublesome 

 weed. Naturalized from Europe. Native 

 also of Asia. Called also dog's-tongue, rose 

 Tory-weed. Wood-mat. May-Sept. 



2. Cynoglossum virginianum L. Wild Comfrey. Fig. 3509. 



Cynoglossum virginianum L. Sp. PI. 134. 

 1753- 



Perennial, hirsute; stem usually sim- 

 ple, leafless above, stout, ii-2i high. 

 Basal and lower leaves oval or oblong, 

 -i'-ij' long, obtuse at the apex, nar- 

 rowed into petioles; upper leaves ob- 

 long, or ovate-lanceolate, sessile and 

 clasping by a cordate base, acute, nearly 

 as large, or the one or two uppermost 

 quite small ; racemes 2-6, corymbose, 

 bractless, long-peduncled ; flowers blue, 

 about 5" broad ; corolla-lobes obtuse ; 

 calyx-segments oblong-lanceolate, ob- 

 tuse, about 2" long at flowering time ; 

 fruit depressed, 4" broad, the nutlets 

 convex on the upper face, not margined, 

 separating and falling away at matur- 

 ity, about 4" long. 



In woods, New Jersey to Kentucky. Mis- 

 souri. Florida, Louisiana and Kansas. 

 Ascends to 2500 ft. in Virginia. Dog-bur. 



April-May. 



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