TILIA— TRIFOLIUM. 



177 



ed ; two outer petals longer than the other 

 four; leaves ensifonn, nerved. Mexico. 



T1L"IA. 12-1. (Tiliacea:.) iFvom ptelea, the 



Greek name.] 



gla'brn, (bass-wood, lime-tree, y-w. Ju. 

 ^.) Iciives round-cordate, abruptly acumin- 

 ate, sharply serrate, sub-coriaceous, glab- 

 rous : petals truncate at the apex, crenate ; 

 style about e«lnalling the petals ; nut ovate. 

 Large tree. Wood soft and white. Leaves 

 often ti'uncate at the ba.se. 



pube/i'cens, (y-w. Ju. ^.) leaves truncate 

 at the base, sub-cordate, oblique, denticu- j 

 late-.scrrate, pubescent beneath ; petals 

 emarginate ; nut globose, smooth. Var. 

 leptophvl"la, leaves lax, serrate, very thin. 



laxifio'ra, (M. 2^.) leaves cordate, gradu- 

 ally acuminate, serrate, membranaceous, 

 smooth ; panicles loose ; petals emarginate ; 

 styles longer than the petals ; fruit globose. 

 Near the seacoa.«t. 



lietcropliyV'la, (J '^.) leaves ovate, at base 

 oblique or equally truncate and cordate, 

 serrate, white-tomentose beneath ; fruit glo- 

 bose. /S^. 



TILI.AND"SIA. 6—1. (Narcissi.) [Named ; 

 from Tillandsius, professor of Medicine at i 

 Albo.] I 



uit-icula'fa, (wild pine, bladder tillandsia, j 

 w.) leaves concave, broad, their base en- 

 larged ; panicle branching ; flowers .se.ssile ; 

 stamens longer than the corolla. 3 f. The 

 leaves are often found containing nearly a 

 pint of water. S. 



usneoi'des, stem gray, diffuse, filiform, 

 pendulous, branching. Parasitic. From 

 Its peculiar appearance, suspended from 

 trees to whicli it has fastened itself, it is 

 called old man's beard. 



recurva'ta, (p.) leaves subulate, recurved ; 

 scape setaceous, longer than the leaves, 

 generally. 2-flowered at the summit. S. 



TIPULA'RIA. 18—1. (Orchidccc.) 



disco'Ior, (w. Au.) leaf solitary, plaited, 

 and longitudinally-nerved; flower in nod- 

 ding racemes. 



TOFIEL"DIA. 6—3. 



pubes"cens, (p-w. Ju. 21) leaves sub-rad- 

 ical, ensiform, narrow, smooth; rachis and 

 pedicels scabrous ; spike oblong, inter- 

 rupted ; scape 18 i. Swamps. 



glutino'sa, (Z^.) scape and pedicels glu- 

 tinous, scabrous ; spike with a few alternate 

 /"ascicles; capsule ovate, twice the length 

 of the calyx. 



glaber" r'arui, (w. Oc. 21.) very glabrous; 

 leaves linear, gladiate ; flowers racemod ; 

 buds approximate, nearly whorled j 1-flow- 

 ered. (S*. 



gla'bra, (g-w.) scape terete ; leaves linear, 

 ensiform; spike oblong, short, dense ; ped- 

 ancled, solitary, angular; capsules mem- 

 branaccotil. 8-10 i. S. 



TRADESCAN"TIA. 6-1. (Junci.) [From 



John Tradescant.] 



virgin" ica, (spider-wort, b-p. M. 2/.) 

 erect, branching ; leaves lanceolate, elon- 

 gated, glabrous; llowers sessile; umbel 

 compact, pubescent. Cultivated. 1-2 f. 



ros^a, llowers sraallor than the prece- 



ding; inner segments rose-colored, longer 



than the outer. 



TRA'GIA. 19—3. (Euphorbea.) [Named uftei 



a fainous German lierbalist.] 



ramo'srr, stem herbaceous, pilose, very 

 branching ; leaves petioled, lance-ovate 

 pharply serrate, hirsute beneath, sub-cor- 

 date at the ba.se ; racemes axillaiy, filiform, 

 few-flowered. 8 i. 



u'rens, (Ju. 2X-) erect; leaves lanceolate, 

 sessile, obtu.-^*;, sub d^'itate at the apex; 

 stem and branches pubescent. Y^ix. subova'' 

 lis, leaves oblong oval, sometimes wedge- 

 form. Var. lanc.eola'la, leaves lanceolate 

 sub-dentate, and entire. S. 



urticifo'lia, (Ju. %.) stem erect, liirsute , 

 leaves cordate, ovate, serrate, alternate, 

 short-petioled. 12-18 i. S. Dry soils. _ 



macroca/'pa, (Ju. 0.) climbing, hispid; 

 leaves deeply cordate, ovate, dentate. S. 



TRAGOPO'GON. 17—1. (dehor ace ce.) [From 



tragos, a goat, and pogon, beard, so called 



from its downy seed.] 

 porrifo'lium, (vegetable-oyster, goat beard, 

 salsify, p. Ju. ^ .) calyx longer than the rays 

 of the corolla ; the florets very naiTow, 

 truncate ; peduncles incrassate. Ex. 



pra'teii"sis, (goto-bed-at-noon, y. $ .) haa 

 large flowers, which close in the middle of 

 the day, and a curious, feathery head of 

 seeds. Ex. 

 TRE'POCAR'TUS. 5—2. (Umhelliferea:.) 



cethu'see, (w.) umbels 5-rayed ; fruits four 

 times as long as broad ; leaves many-cleft, 

 with linear lobes. Arkansas. 

 TRIB"ULUS. 10—1. (Butacem.) 



inax"imus. (y. Ju.) leaves pinnate ; leafets 

 about 4-pairs, outer ones largest ; pericarps 

 10-seeded, not spiny. 1-2 f. 



trijnga'tus, (y. 0.) leafets in 3 pairs, ter- 

 minal ones largest, pubescent beneath ; cap- 

 sules 5, 1 -seeded, muricate, spineless. 

 TRrCIIO'PHYL"LUM. 17—2. (Corymbifera.) 



[From thrix, hair, and phullon, a leaf.] 



lana'tum, (y. Ju. 2^.) woolly in all parts; 

 leaves linear, pinnatifid above ; peduncles 

 elongated, 1-flowered ; rays 2-toothed ; 

 akencs glabrous, 5-angled. 



oppositifo'liinn, (Ju. 21.) decumbent, 

 branching, short, hoary-pubescent; leaves 

 oppo.site, palmate, 3-cleft ; segments ligu- 

 latc, simple, or divided ; peduncle filiform, 

 mostly dichotomous, scarcely longer than 

 the leaves. 6-12 i. S. 

 TRI'CHOSTE'MA." 13—1. (Labiata.) [From 



tnchos, hair, and sterna, stamens.] 



dichoi"oma, (blue curls, b. Au. 0.) leaves 

 lance-ovate ; branches flower-bearing, 2- 

 forked ; stamens very long, blue, ciH-ved. 

 Var. linea'ns, somewhat pubescent; leaves 

 linear. 6-12 i. 

 TRIENTA'LIS. 7—1. (Lt/sxmacMcF.) 



america'na, (chick wiutergreen, w. Jo 

 11.) leaves lanceolate, sen-ulate, acuminate 

 petals acuminate. 3-6 i. 

 TRIFO'LlUiM. 16—10. {Leguminosm.) [Frew 



ires, tluee, folium, leaf.] 



re'pcns, (whito-clovcr, w. M. 2^.) creep 

 ing ; leafets ovate oblong, emarginate, ser 

 I rulate ; flowers in umbcllcd heads ; tcetli c* 

 I tlie calyx sub-equal ; legumes 4-Pceded. 



