384 CONVOLVULUS, CRAT^EGUS. 



trifo'Ua (O. w. 3. 4), stem about 3 leaved ; leaves alternate, ovate-lanreolate, 

 contracted at the base ; raceme simple, terminal, few-flowered. 6 10. i. 



racemo'sa (spiked solomon see. O. y-w. M. 4), stem with alternate leaves ; 

 sessile, oblong-oval, acuminate, nerved, pubescent ; flowers in a terminal 

 raceme-panicle. 18 24 i. 



Southern. 



maja'tis (lily of the valley. A. w. J. 4), scape naked, smooth ; leaves oval- 

 ovate. 



51. CONVOLVULUS. 29. 43. 



re'pens (field bind-weed. O. w. & r. J 4), twining ; leaves sagittate, with the 

 apex acute and the lobes truncate, entire (some obtuse) ; bracts acute, longer 

 than the calyx, and shorter than the middle of the corolla : peduncle angled, 

 exceeding the petiole. N. 



pandura'tus (mecnoacan. w. & r. Ju. 4), twining, pubescent : leaves broad- 

 cordate, entire or lobed, guitar-form : peduncles long ; flowers fascicled : 

 calyx glabrous, awnless ; corolla tubular-bell-form. Resembles rhubarb in 

 its effects. 



Exotic. 



bata'tus (sweet potato, Carolina potato, w-r. Ju. 4), creeping, tuberous ; leaves 

 cordate, hastate, angular-lobed, 5 nerved, smoothish ; peduncles long ; flow- 

 ers fascicled ; corolla sub-campanulate. Cultivated. 



purpu'reus (common morning glory, b. p. J. Q), pubescent ; leaves cordate, 

 entire ; peduncles 2 to 5 flowered ; pedicels nodding, thickened ; divisions 

 of the calyx lanceolate ; capsules glabrous. Cultivated. 

 1213. COPTIS. 26. 61. 



trifu'lia (gold thread. O. w. M. 4), scape 1 flowered ; leaves ternate. Roots 

 long, filiform, golden-yellow. Tonic bitter. B. 2 4 i. S. 



52. CORIANDRIUM. 45. 60. 



Exotic, 

 sati'mun (coriander, w. J. ), fruit globose ; calyx and style permanent. 



41. CORNUS. 45. 58. 

 canaden"si* (dogweed, low cornel. O. w. M. 4), herbaceous ; leaves at the top, 



whorled, veiny ; involucre ovate, acuminate ; fruit globose. 4 8 i. S. 

 flo'rida (false box, dogwood tree. w-y. M. ^ ), leaves ovate, acuminate : involu- 

 cre 4, very large, somewhat obcordate : fruit ovate. 1530 f. S 

 circina'ta (O. w. J. > ), branches warly ; leaves broad-oval, acuminate, white- 

 downy beneath ; cymes depressed. 6 8 5. 



1610. CORONILLA. 32. 93. 



em"erus (coronilla. y. 4), stem angled, woody ; peduncles about 3 flowered ; 

 claws of the petals about thrice as long as the calyx. 



165. CORYDALIS. 24. 62. 



cucutta'ria (colic weed. O. y. & w. M. 4), corolla 2 spurred ; scape naked ; 

 raceme simple, 1 sided ; nectaries divaricate, of the length of the corolla ; 

 style enclosed. 812 i. S. 



1912. CORYLUS. 50. 99. 



america'na (hazle nut. O. Ap. > ), leaves roundish, cordate, acuminate ; calyx 

 roundish-campanulate, larger than the sub-globose nut ; border dilated, 

 coarsely serrate. 35 f. S. 



115. CRAT^GUS. 36. 92. 



cocrtnea (thorn-bush. O. w. M. > ), thorny ; leaves long-petioled, ovate, acute- 

 ly-lobed, serrate, glabrous ; petioles and pubescent calyx glandular ; flowers 

 pentagynous. Var. viridis, has lance-ovate leaves, subtrilobate ; stem un- 

 armed. 



puncta'ta (common thorn-tree. O. w. M. > ), thorny or unarmed ; leaves wedge- 

 obovate, sub-plicate, glabrous, serrate ; calyx villose ; divisions subulate, 

 entire. S. 



Exotic. 



oxycanttha (quickset, w. M. > ), leaves obtuse, somewhat 3 cleft, serrate, gla- 

 brous ; peduncles and calyx somewhat glabrous ; segments of the calyx 

 lanceolate, acute ; styles 2. Naturalized. 



