ULMUS 



1881 



N 



incision not reaching the nutlet. Middle Europe to 

 western Asia. — Rarely cultivated and with les.s valualile 

 wood. The trunk and the limbs are, as in the Ameri- 

 can Elm, often clothed with short branchlets. 



3. racemdaa, Thomas, not Borkh. Cork Elm. Rock 

 Elm. Fig. 2612. Tree, attaining 100 ft., with short 

 spreading branches, forming an oblong round-topped 



head: branchlets pubescent usually 



A until the second year and mostly ir- 



regularly corky winged 

 when older: buds acute, 

 pubescent: Its. oval to ob- 

 long -obovate, unequal at 

 tlie base, shortly acumi- 

 u;ite, sharply and doubly 

 serrate, glabrous or some- 

 what rough above, pubes- 

 cent beneath, 2-4 in. long: 

 tts. in slender pendulous 

 racemes ; calyx with 5-8 

 exserted stamens: fr. oval 

 or obovate, with a shallow 

 (X2.) notch at the apex, pale, (X 2.) 



pubescent, %-% in. long. 

 Quebec to Tennessee, west to Nebraska b S 7 312 



4. altlta, Michx. Wahoo.#' Winged Elm Fig 2613 

 Tree, attaining 50 ft., with spreading branche-^) forming 

 an oblong, round-topped or rather open head branthes 

 usually with 2 opposite very broad wings branchlets 

 almost glabrous: buds acute glabrous h s ovite ob 

 long to oblong-lanceolate, often falcite acute or acumi 

 nate, doubly serrate, subcoiiaceous gl ibrous ab()\ e 

 pubescent beneath, \%-2}4 in long fls in shoit fen 

 fid. racemes; stamens usually o fr ellii- tic ovate with 

 narrow wing and with 2 incurved horns it the apex 

 villous, y^ in. across. Va. to Fla west to 111 and Te\ 

 S.S. 7:313. — Handsome round headed tree sometimes 

 used as an avenue tree in the southern states not 

 hardy north. 



5. Wlva, Michx. ( U. rfibra Michx ) Slippery Elm 

 Red Elm. Figs. 2614, 2615. Tree, attaining 70 ft., with 

 spreading branches, forming usually a broad, open, 

 flat-topped head : branchlets pubescent: 1 vs. obovate to 

 oblong, very unequal at base, long-acuminate, doubly 



texture very rough above pubescent 

 dense clusters stamens 



serrate of fi 

 beneath 4-7 m long 

 5-9 fr orbicuUr o^ al lit 

 across Quebec to Fl i \\ 

 7 314 Em 2 3-i4 -The 

 the bud scales is verj coi 

 buds are unfolding An i 

 and fr is V elliptica h 

 Sibuica Hort ) a nitivt 

 tan and Persia with long( 

 pubescent buds 



111 in foliage 



spath U 



in Turkes 



1 s and grayish 



branchlets pubescent: buds pubescent, rather obtuse: 

 Ivs. very short-petioled and unequal at base, broadly 

 obovate to oblong-obovate, abruptly acuminate or some- 

 times 3-lobed at the apex, sharply and doubly serrate, 

 rough above, pubescent beneath, 3-G in. long: fls. clus- 

 tered; stamens 5-6, little exserted: fr. oval or roundish 

 obovate, little notched at the apex, with the seed in the 

 middle, %-l in. long. Europe to Japan. -A variable 

 species of which many forms are cultivated; the follow- 

 ing are some of the most important: Var. atropurptirea, 

 Spath. With dark purple foliage. Var. B61gica, Hort. 

 Of vigorous growth, forming a broad pyramidal head; 

 Ivs. dark green. Var. crispa, Loud. ( U asplenifdlia, 

 Hort.). A rather slow-growing form with narrow ob- 

 long curved Ivs. incisely serrate with twisted teeth, 

 giving the margin a fringed appearance. Var. Dam- 

 piferi, Koch. Similar to var. fastigiata, but with slen- 

 der branches, smaller and lighter foliage. Var. Dam- 

 pleri Wrfidei, Hort. Differs from the foregoing by its 

 yellow young leaves. M.D.G. 1898:160. Var. DovSei, 

 Hort. Of vigorous growth and upright pyramidal habit. 

 Var. faBtigiita. Loud. ( d. pijramidaUs, Hort. U. Exo- 

 niinsis, Hort.). Of columnar habit with strictly up- 

 right branches and somewhat twisted, broad dark green 

 leaves Var horizont41is Kirchn With houzontally 

 spreading limbs and more or less drooping blanches. 

 Cn 17 p o39 M D G 1901 1(.3 \ ai lacimftta Trautv. 

 Lvs broadly obovate 3 or 



6. scibra, Mill. (Cr. mnntAna, With. CT. 

 Huds.). WrcH Elm. Scotuh Elm. Fig. 2616. Tree, 

 attaining 100 ft., with spreading branches forming an 

 oblong or broad round -topped head; without suckers: 



1 Hill Hc.it ) Cam- 

 it 1 1 iiwN Elji lig. 

 _• M \\ ith long pendu- 

 1 u branches the 

 Imilis often spieadmg 

 huiizontally. Gn. 40, 

 p. 158. Var. Pitteiirsi, 

 (X2.) (X 2.) Hort. Pyramidal tree 



of vigorous growth 

 with deeply serrate lvs. often purplish when unfolding. 

 Var purpiarea Koch Lvs pui|l «h n ^ un^ chang- 

 ing to dark green Var sup^rba II it ot Mgorous 

 growth with large and lon„ iliil ^i n 1 im s Var. 

 tnciispis Koch (P" ills, until i inl i, Hiit ) Lvs 

 obovate 3 IoIm 1 it th i] x 



7 camp^stns smitli i / uheidsa Willd IT surcu- 

 losa Stoke I 1 n i i ii 1 i m Tree attaining 100 ft., 

 with spieadui., 1 J m li t lining an oblong round- 

 topped or sometimes open head usually producing 

 suckers branches little pubescent when young or gla- 

 brous sometimes becoming coikj buds acute pubes- 

 cent or glabrous lvs distinctly petioled broadlj o\ ate 

 to ovate oblong, unequal at the 

 base acuminate doubly serrate, 

 usually glabrous and smooth 

 above at length pubescent or 

 „Ubious bent ath l}-i.-5 in long 

 II li It I h li d St miens 4-6 



I I t « nil till nutlet much 

 II 1! I I II 1 I lung almost 



III 111 1 1 II It till i,K\ Middle 

 Lui ipe md noithem Africa to 

 Japan Era 2 3^6 M D (t 

 1900 d77 - This tiee is often 

 planted as an avenue tree it 

 succeeds ver^ well and fine old 

 trees may be occasionally seen 

 in the northeastern states The 2^" O"' °* ""any "a'" 

 foliage remains green several "'^' forms of the 

 weeks longer than that of the American Elm — the 

 American Elm U cnmpestiis is **^' '°'''" '>'•" 

 still more variable than the fore 



going species and four vars., very distinct in their ex- 

 treme forms and sometimes considered distinct species, 

 can be distinguished. 



Var. vulgaris, Planch. [U. suberbsa, Ehrh. U. mi- 

 nor, Mill.). Small tree or shrub, with often corky 

 branches: lvs. broadly oval or rhombic obovate, rough 



