PYROL A— aUERCUS. 



15) 



terminal ; bracts lanceolate, acutisb. 18- 

 24 i. 



PYRO'LA, 10—1. (Erica.) [From pyrus, a 



pear, so called on account of the sliape of 



the leaf.] 



rotutidifo'lia, (shin-leaf, pear-leaf wiuter- 

 ^een, vv. J. 2J!.) style declined; leaves 

 rounded, or broad-oval, obsoletely ecrrulate, 

 Bub-coriaceous, shining; petiole about as 

 long as the lamina ; scape many-flowered. 

 6-12 i. 



eUip"iica, (g-w. Ju. 2^.) leaves membran- 

 aceous, elliptical-ovate, serrulate, rather 

 acute, lamina longer than the petiole ; scape 

 nearly naked ; bracts subulate ; calyx 5- 

 toothed ; style declined ; scape 10 i. 



asarlfo'Ua, (g-w. Ju. 11-) leaves reniform, 

 coriaceous, half as long as the dilated 

 petiole ; raceme many-Howered ; stigma 

 clavate ; the disk elongated and 5-lobed. 

 Dry woods. 



secun"da, (one-sided wintergreen, g-w. 

 Ju. 2^.) stamens erect; style straight; 

 .'eaves ovate, acute ; secund. 2-3 i. Sandy 

 woods. 



■unijlo'ra, (J. 2/.) flower solitary ; leaves 

 orbicular, serrate ; stigma acute ; style 

 straight, 5-toothed ; flower terminal, large, 

 ■ white, fragrant, nodding. Chiefly in nor- 

 thern latitudes ; rare. 



aphyV'la, style declined ; scape and stalk 

 leafless, scaly ; scales lanceolate, membran- 

 aceous; scape angular. 



mi' nor, (w-r. Ju. 2^.) style straight ; leaves 

 round-oval, serrulate ; scape sub-naked ; 

 spike with flowers reversed. 



PY'RUS. 11—5. (Rosacem.) [Origin of the 



name doubtful.] 



corona'ria, (crtb-apple, w-r. M. ^ .) leaves 

 broad-oval, at the base rounded, sub-angled 

 or sub lobed, serrate, smooth; peduncles 

 coiymbed. Flowers sweet-scented. 



commu'nis. (pear, w. r. M. Tp.) leaves 

 ovate, serrate, (rarely entire) ; peduncles 

 corymbed. Ex. 



■ma'lus, (apple, w. r. M. ^ .) flowers in 

 sessile umbels ; leaves ovate-oblong, acu- 

 minate, serrate, glabrous ; claws of the 

 petals shorter than the calyx ; styles glab- 

 rous. Var. sylves'lris, (wild-apple,) leaves 

 ovate, serrate ; fruit small, rough to the 

 taste. The various kinds of apples are but 

 varieties of the same species. 



cydo'nia, (quince, w. J. <^ .) flowers soli- 

 tary ; fruit tomentose ; leaves ovate, entire. 

 Ex. 



angustifo'lia, (M. ^ .) leaves lance-oblong, 

 at the base acute, slightly crenate-toothed, 

 shining ; peduncles corymbed. Fruit very 

 email. Florida. 



prunif(/lia, (Siberian crab, w. r. M. ^ .) 

 umbels sessile ; pedicels pubescent ; styles 

 woolly at the base ; leaves ovate, acumi- 

 oate. 12-1.5 f 



spectah"iIU, (Chinese crab or garland 

 flowering wild apple,) produces very showy 

 flowers in May. (iuite hardy. Ex. 



corona'riii, (sweet-scented crab,) large 

 and beautiful pink blossoms, very fragrant. 

 Ex. 



ag:tTacan"ica, umokcow or transparent 



crab,) fruit very large, wax-colored, absiosf 

 transparent when ripe. Ex. 



salvifo'lia, (w.) leaves woolly. Ex. 



afnyg"dahbJor"mis, leaves silvery-white, 

 fruit shaped like that of the almond. Ex. 



jlonbnn"da, grows about four feet high, 

 and sends down weeping branches, which 

 are covered with a profusion of white flow- 

 ers. Ex. 



QUER"CUS. 19—12. (Amentacea:.) [From 

 gucro, to inquire, because the Druids gave 

 tlieir divinations from this tree.] 



1. Fructification biennial; leaves seta- 



ciously mucronate. 



Leaves entire. 



pheU'lus, (willow-oak, M. '^.) leaves decid- 

 uous, linear-lanceolate, tapering at each 

 end, veiy entire, glabrous, mucronate; 

 acorn roundish. Var. huvril"is, low and 

 straggling ; leaves shorter. 30-60 f. 



imbrica'ria, (shingle-oak, M. ^.) leaves 

 deciduous, oblong, acute at each end, mu- 

 cronate, very entire, shining-pubescent be- 

 neath ; cup shallow ; scales broad-ovate ; 

 aconi sub globose. 40-50 f. 



2. Leaves dentate or lobed. 



trilo'la, (downy black-oak, M. ^ .) leaves 

 oblong-cuneiform, acute at the base, 6ub-3- 

 lobed at the apex ; lobes equal and mucro- 

 nate, tomentose beneath ; cup flat ; acorn 

 depressed-globose. 



aquaf'ica, (water-oak, M. ^.) leaves obo- 

 vate, cuneiform, glabrous, veiy entire ; •apex 

 obscu',^ly 3-lobed, middle lobe longest ; c-ip 

 hemispheric ; acorn sub-globose ; leaves 

 very variable. 30-40 f. 



ni'gra, (barren oak. blackjack, M. ^.) 

 leaves coriaceous, cuneiform, sub-cordate at 

 the base, dilated, and retusely 3-lobed at the 

 apex; ^vhen young, mucronate, glabrous 

 above, ru.sty and pulverulent beneath ; cup 

 turbinate ; scales obtu.se and scarioua 

 acorn short, ovate. Small. 



catcs"haei, (barren scrub-oak, M. Tp.j 

 leaves shortpetioled, cuneate at the base, 

 oblong, deeply sinuate, glabrous; lobes 

 3-5, divaricate, dentate, acute ; cup turbi 

 nate, large ; scales obtuse, marginal ones 

 inflexed ; acora ovate. 15 — 30 f. Bark 

 used by tanners. 



pains" tris, (pin-oak, M. ^ .) leaves long 

 petioled, oblong, deeply sinuate, glabrous 

 axils of the veins villose beneath ; lobes di- 

 varicate, dentate, acute ; cup flat, smooth 

 acorn sub-globose. 



tincto'ria. (black-oak, M. '^./ Leaves obo 

 vateoblong, slightly sinuate, pubescent be 

 ncath ; lobes oblong, obtuse, obscurely 

 toothed, mucronate; cup flat; acorn de 

 preased, globose ; bark dark colored. 



banniste'ri, (scrub-oak,) leaves ou long 

 petioles, wedge-obovate, 3-5 lobed, cntirt 

 on the margin, grayish-tomento.se beueatli 

 lobes setaceously nmcronate ; cup sub-tur 

 binate ; acorn siib-globose. Dry hills au( 

 barrens. 4 6 f . 



ru'bra, (red-oak,) leaves large, brigh 

 green ; .sinuses rounded; cup of the corolla 

 shallow, base flat. 



coccin"ea, (scarlot-oak,) 'M.stinguii»hed by 



