254 ' DICOTYLEDONOUS PLANTS. 



and closed calyx ; limb of the corol erect-spreading, about as long a 

 the tube. M. scorpioidcs var. arvtnsis Linn.M. vcrna Xutt. 



HAB. Sandy woods. Can. and N. S. W. to Miss. June. G>. 

 Plant gray, pubescent. Stem 410 inches high. Ftmcers 

 very small, white, on long pedicels. Field Scorpion Grass. 



8. ECHINOSPERMUM. Lehm. 



Calyx 5-parted. Corol salver-form, closed by connivent 

 scales. Nuts fixed to a central column, echinate, compressed. 



Pentandria. Monogynia. 



1. E. lappula Lehm. : stem branched above ; leaves lanceolate or li- 

 near-lanceolate, hairy ; corol longer than the calyx ; border erect, 

 spreading ; nuts with 2 rows of hooked prickles on the margin. Myo- 

 totis lappula Linn. Rochelia lappula R. $ S. Torr. 



HAB. Road sides. Can. and N. S. N. to Subarc. Amer. Juljr. 

 Stem a foot high, branched above. Flowers minute, blue, 

 erect when in fruit. 



2. E. virginicum Lehm. : leaves oblong-lanceolate, acuminate, sca- 

 brous above ; racemes divaricate, dichotomous ; nuts densely covered 

 with hooked prickles. Myosotis virginiana Linn. Rochelia virginiana 

 R. 4- 3. Torr. 



HAB. Can. to Car. July. <J. Stem 2 feet high. Leaves very 

 large. Flowers minute, pale blue, in dichotomous racemes. 



.,**>' ' 



9. CYNOGLOSSUM. Linn. 



Calyx 5-parted. Corol short, funnel-form, 5-Iobed ; ori- 

 fice closed with convex connivent scales. Nuts depressed, 

 affixed to the styles by their inner margin. 



Pcntartdria. Monogynia. 



1. C. officinale Linn. : leaves lanceolate, attenuate at the base, ses- 

 sile, downy ; lower ones large, petiolate ; upper ones subclasping ; 

 flowers in terminal racemes ; stamens shorter than the corol. 



HAB. Road sides, &c. N. S. June, July. $ .Plant dull 

 green, soft and downy, fetid. Flowers purplish-red. Fruit rough. 

 Introduced. Hound's Tongue. 



2. C. virginicum Linn. : leaves oval-oblong, acute, hairy ; lower 

 ones long, petiolate ; upper ones cordate and clasping at the base ; co- 

 rymb on a large almost naked panicle. C. amplezicaulc Mich. 



HAB. Shady woods. N. Y. to Car. May. 21- Stem S 3 feet 

 high, very hispid. Leaves less hairy than in the former. Flowers 

 in a small terminal corymb, blue. 



10. PULMONARIA. Lmn. 



Calyx prismatic, 5-sided. Corol funnel-form, somewhat 

 5-lobed ; orifice naked. Ruts imperforate at base. 



Tmtandria. Monogynia. 



