DI0EC1A OCTANDRIA 569 



1 P. ghandidkntata, Mx. Leaves roundish-ovate, acute, coarsely 

 sinuate-dentate, smooth, tomentosc when young, mostly biglandular at 

 base. Beck, Bot. p. 323. Icoar, Mx.f. Sylva, 2. tab. 99. Jig. 2. 

 P. trepida. Wittd. Sp. 4. p. 803. Mt. Kerw. 5. p. 395. Muhl. Cat a I. 

 p. 92. Lindl. Ency.p. 840. Also, Per*. Syn.p. 623. Not of Purjsh, 



P 



and Xutt 



L.IBCE-TOOTHED Potulus. Vulgo — Large Aspen. 



Stem 30 or 40 feet high, and 12 to 18 inches in diameter, branched— when growing 

 singly the top often bushy,— the bark smoothish, and greenish-grey, or cinereous. 

 leaves 3 to 4 or 5 inches long, and about as wide as long, roundish-ovate, acute, or 

 «ub-acuminate, the base very obtuse, truncate, or slightly cordate, coarsely and 

 sub-equally sinuate-dentate, often, but not constantly, with 2 cup-like elands at the 

 junction with the petiole, very tomentosc when young, finally smooth; petioles 2 

 to 3 inches long, laterally compressed towards the leaf ; stipules lance-oblong. 

 toineMose, caducous. Pistillate anient* 2 to 3 inches long. 

 Hub. Moist woodlands; not common. PL April, /V.May. 



Obs. This species is becoming rare in the vicinity of West Chester. Willden- 

 cw&nd Limliey seem to have confounded it with P. manilifera, Ait. which Muhl- 

 enberg thought was hardly distinct from P. angulata of Aiton; and I cannot help 

 thinking that the P. manilifera, Ait. P. canadensis, Mx. f. and the P. lavigata 

 Pursh, arc all confused synonyms of the P. angulata, or "Cotton-icood" of the 

 Valley of the Mississippi. 



3. P. nETERorHYLLA, L. Leaves roundish- and oblong- or deltoid- 

 ovate, rather obtuse, often auriculately subcordate at base with the 

 sinus small, uncinately dentate-serrate, very tomentose when young. 



P. argentca. Mx. f. Si/lva, 2. p. 235 (Icox, tab. 97.). 

 Various-leaved Popuius. 



Stem 30 io 30 feet high, and 12 to 18 inches in diameter, with terete branch.., 

 TtrUT u'T bark ' Which Pentose in the young growth. Leaves 3 or 



nl JT ° ng ' and 7 ° r 3 l ° 6 ° r 7 iDCheS wide < lhe ,ar Ser ones on y„u„g 



pants) vary.ng from roundish-ovate to oblong- or deltoid-ovate, rather LuZ 



ZZ rSS T, often fu " or a lilllc produced > sli ^y corda " ™« " ! 



r.culate, finally smooth above, with some remains of pubescence beneath, when 

 young densely c othed, on both sides, with a cinereous (or often slightly tawny) 



*S Ww ? 4 or f inches long > pub ^ ent > ai flrsi ™*Z£Zl 



tUpulcs lmcar-lanceolate, or lance-subulate, tomentose, deciduous. 



Hub. Moist woodlands ; E. Marlborough ; not common. FL April. />. 



ZtJn" 8 T' le8 °? CUr8 ' °' m ° deratC Size > in ,hc w °odlands and some moist 



n,u B h *. hit h re8ldeaCC ° f Me88rS - Samuel and Joshua P «™> »» East Marl- 



famine ?n fl™ n ° l ""W •»*"*"*-*» ^ve I yet had an opportuni y 



'. 2 U Stls Z71' ° r r ,U,t - FiV ° ° r " iX addiU0nal 8 ' 5ecie8 " e —rateJ 



moardv Sr T Tn 5 * SpeC ' e8 (V ' Z - 8taminate " ,anl8 ° f P - ****». <>r 



•c^trod^r 'T , " W,,fa/ * P,antS of P '^"<«. or Athenian Poplar) hav. 



S£ST!i P^pagated by cuttings, as ornamental shade Trees, to a 



-^KS«r«2f!Sr" Pee , ,ll,J * eL ° rabard ' P °P»-- They are, howeve , not 

 much adm.red as formerly ; and arc gradually giving place to other traaa! 



fDioepyroa. Acer. Octandria Mmogynia.-] 



48" 



