TAGETES, TRIFOLIUM. 411 



172. TAGETES. 49. 55. 



Exotic. 



erec"ta (african marygold. y. Ju. ), leaves pinnate; leafeta lanceolate, 

 cilitate serrate; peduncles 1 flowered, incrassate, sub-inflated; calyx 

 angled. 



172. TANACETUM. 49. 55. 



Exotic. 



vulffa're (tansey. y. Ju. 4), leaves doubly pinnate, gash-serrate. Naturalized. 

 Var. crispum (double tansey), leaves crisped and dense. 



131. TEUCRIUM. 42. 89. 



canaden"se (wood sage, germander. O.r. Ju. 4), pubescent; leaves lance ovate, 

 serrate, petioled ; stem erect; spikes whorled, crowded; bracts longer than 

 the calyx. Var. virginicum, upper leaves sub-sessile ; bracts about the length 

 of the calyx. 1 3 f. S. 



1213. THALICTRUM. 26. 61. 



dio'icum (meadow rue. O. w-r. M. 4), flowers dioecious ; filaments filiform ; 

 leaves about 3 ternate ; leafets roundish, cordate, obtusely lobed, glabrous ; 

 peduncles axillary, shorter than the leaves. 1 2 f. S. 

 121. THEA. 54. 71. 



Exotic, 

 bohe'a (bohea tea M. > ), flowers 6 petalled; leaves oblong oval, rugose. From 



China and Japan. 

 vir"idis* (green tea. ^ ), flowers 9 petalled ; leaves very long oval. 



14 J. THLASPI. 39. 63. 



bursa-pasto'ris (shepherd's purse. O. w. M. ), hirsute; silicles deltoid obcor- 

 date ; radical leaves pinnatifid. ,S. 



131. THYMUS. 42. 39. 



Exotic. 



vulga'ns (thyme, b-p. J. 4, > ), erect ; leaves ovate and linear, revolute ; flow- 

 ers in a whorled spike. 



121. TILIA. 37. 79. 



gla'bra (bass wood, lime tree. O. y-w. Ju. ^ ), leaves round cordate, abruptly 

 acuminate, sharply serrate, sub-coriaceous, glabrous ; petals truncate at the 

 apex, crenate ; style about equalling the petals ; nut ovate. Large tree, wood 

 soft and white. Leaves often truncate at the base. S. 



61. TRADESCANTIA. 6. 13. 



virgin"ica (spider wort. b-p. M. 4), erect, branching ; leaves lanceolate, elon- 

 gated, glabrous ; flowers sessile ; umbel compact, pubescent. Cultivated. 

 1 2f. 



17 i. TRAGOPOGON. 49. 53.. 



Exotic. 



porrifo'lium (vegetable oyster, goat beard, salsify, p. Ju. $ ), calyx longer than 

 the rays of the corolla ; the corollets very narrow, truncate ; peduncles in- 

 crassate. 



131. TRICHOSTEMA. 42. 39. 



dichot"oma (blue curls, b. Au. ), leaves lance ovate ; branches flower bearing, 

 2 forked ; stamens very long, blue, curved. Var. linearis, somewhat pubes- 

 cent ; leaves linear. 6 12 i. S. 



71. TRIENTALIS. SO. 34. , 



america'na (chick wintergreen. O. w. Ju. 4), leaves lanceolate, serrulate, acu- 

 minate ; petals acuminate. 3 6 i. 



1610. TRIFOLIUM. 32. 93. 



re'pens (white clover. O. w. M. 4), creeping ; leafets ovate oblong, emarginate, 

 serrulate ; flowers inumbelled heads ; teeth of the calyx sub-equal ; legume* 

 4 seeded. S. 



praten"se (red clover. O. r. M. 4), ascending, smoothish, leafet ovate, sub-en- 

 tire ; stipules awned ; spikes dense-ovate ; lower tooth of the calyx shorter 

 than the tube of the corolla, and longer than the other teeth. 23 f. S. 



arven"se (rabbit-foot. O. w. J. ), heads very hairy, oblong cylindrical ; teeth 



* It is asserted by some, that this is only a variety of the bohea. 



