404 PYCN ANTHEM 1 T M, RHODODENDRON. 



131. PYCNANTHEMUM. 42. 39. 



Stamens exsert. 



ln"canum (wild basil, mountain mint. O. w. r. Ju. 4), leaves oblong ovate, 

 acute, sub-serrate, white downy ; flowers in compound heads, lateral ones pe- 

 duncled ; bracts setaceous. 15 f. S. 



101. PYROLA. 18. 51. 



rotundifo'lia shin-leaf, pear-lrat, \\iut. rgreen. O. w. J. 4), style declined ; 

 leaves rounded, or broad oval obsolelely serrulate, sub-coriaceous, shining ; 

 petiole about as long as the lamina ; acape many flowered. 6 12 i. 

 ettip'tica ^O. g-w. Ju. 4), leaves membranaceous, elliptical ovate, serrulate, 

 rather acute, lamina longer than the petiolo ; scape nearly naked ; bracts 

 subulate ; calyx 5 toothed ; style declinate, scape 10 in. 



115. PYRUS. 36. 92. 



corona'ria (crab apple. O. w-r. 31. > ), leaves broad oval, at the base rounded, 

 sub-angled or sub-lobed, serrate, smooth ; peduncles corymbed. Flowers 

 sweet scented. 5. 



Exotic, 

 commu'nis (pear. E. w-r. M. * ), leaves ovate, serrate (rarely entire) ; peduncles 



corymbed. 



ma'lus (apple. E. w-r. M. > ), flowers in sessile umbels ; leaves ovate oblong, 

 acuminate, serrate, glabrous ; claws of the petals shorter than the calyx ; 

 styles glabrous. Var. sylvestris (wild apple), leaves ovate serrate ; fruit 

 small, austere. 



cy'donia (quince. E. w. J. > ), flowers solitary ; fruit tomentose ; leaves ovate, 

 entire. 



Remark. The varieties into which the above species have been extended 

 by culture, are very numerous. 



192. QUERCUS. 59. 99. 



alba (white oak. O. M. > ), leaves oblong, sinuata pinnatifid, pubescent beneath ; 

 lobes obtuse, entire, narrowed at their bases, particularly on full grown trees ; 

 fruit peduncled ; calyx somewhat bowl form, tubercled flattened at the base ; 

 acorn ovate. The most useful timber tree in America. 7080 f. S. 

 1213. RANUNCULUS. 26. 61. 



Leaves divided. 



aborti'vus (O. y. M. 4), glabrous ; stems striate, naked below ; radical leaves 

 heart reniform, obtusely crenate ; cauline ones petioled, ternate, angled ; 

 upper ones sessile ; branches about three flowered. 9 15 i. S. 

 re'pens (O. y 31. 4), pubescent ; leaves ternate, 3 cleft, gashed ; creeping 

 shoots sent off in the summer ; peduncles furrowed ; calyx spreading. 

 Damp. 



a'cri* (crowfoot, butter cup. O y. M 4), hairs close pressed, leaves 3 parted, 



many cleft ; upper ones linear ; peduncles terete ; calyx spreading. 1 2 f. 



142. REPHANUS. 39. 63. 



Exotic. 



sati'vus (garden radish, w. J. ), leaves lyrate; silique terete, torose, 2 celled. 

 There are several varieties of this species one has a fusiform, another a 

 globose, another a black root. 



93. RHEUM. 12. 28. 



Exotic. 



palma'tum (rhubarb. J. 4), leaves palmate, acuminate. From China. 

 rhapon"ticum (pie rhubarb, w. J. 4), leaves heart ovate, obtuse and acute 

 smooth ; veins sub-pilose beneath, the sinus at the base dilated ; petioles 

 furrowed on the upper side, rounded at the edge. Radical leaves very 

 large. 2 4 f. 



101. RHODODENDRON. 18. 50. 



max"imum (wild rosebay. E. r. Ju. > ), leaves oblong, glabrous, paler beneath ; 

 umbels terminal, dense ; corollas somewhat bell-form. 4 20 f. 



Exotic. 



pon"ticum (rose bay. p. > ), leaves oblong, glabrous, both sides coloured alike ; 

 corymbs terminal ; corolla bell wheel form ; petals lanceolate. 



