﻿ulmus. ULMACEiE (auctor PLANGHON). 1 55 



Boreau Fl. du Centre), St Florent, Cher (Tourangin in herfc. Lamqtte), in 

 Helvetia, prope Scaphusiam (Wahlenb.), Basileam (Hagenbach fide Kirsctil.), 

 in mqntanis circa Mutenz, Schauenburg et in montibus editibribus passim 

 (Hagenbach ex Gaudin). U. pedunculata Foug. 1. c. jn dissert. coram Acad. 

 sc. paris. ann. 1784 lecta, sed tantum ann. 1787 in lucem' edita; Spach Suit. 



h Buff. XI, p. 111 ; Planch. in Ann. des sc. nat. ann. 1848, p. 267; Ascher- 

 son Fl. Brandeb., p. 614. U. ciliata Ehrh. Beitr. VI, 88. U. eflusa Willd. Arb. 

 393 (ann. 1787 fide Ascherson) ; Gujmp. et Hayn. Deutsch. Holz., t. 29 (fide 



Spach) ; Hartig Lehrb., t. 57 (quam non yidi). U. laevis Pall. Fl. ross., I, 75 

 (exctus. ^ynon. Fl. danic). U. campestris FI. Dan. U. alba Kitaib. in Rosm. 

 et Schult. Syst.'6, p. 209? U. octandra Schkuhr Handb. lab. 57 6. Arbor 

 ligno albido, tenaci, duro. Folia basi saepius valde inaeqiiilatera, novella 

 subtus cinerasoenti-pubescentia, in surculis sterilibus interdum scabrida. (v. 

 v. in h.ort. et s. in h. Cand., Boiss., Delile, Dunal et aliis.) 



2. U. Amebicana (Willd. Enum. Hort. berol., p. 295, ex Roem. et Schult. Syst.' 

 VI, p. 3D0), arbor cortice rimoso, foliis breviter obovato-oblongis v. lanceolatis 

 acuminatis basi leviter insequalibus (rarius manifeste obliquis) grosse dupli- 

 cato-serratis , perianthii campanulati leviter obliqui lobis saepius 8 omnibus 

 imo excepto sese margine tegentibus ciliatis, staminibus omnibus exsertis, sa- 

 mar» parva? ovatae v. ellipticae inaequilaterae glabrae breviter denseque ciliatas 

 stipite perianthium paulo superante, disco seminitego emarginaturae fundo 

 contiguo. ,5 In America septentrionali a Canada (Lat. bor. circit. 48° 2Q') ad 

 tines infimos Georgiae, intef gradus lat. bor. circiter 42-46 praecipue vigehs 

 (Michx.) : nempe in Kentucky (B. Mathes n° 91 in h. Cand., Short in h. 

 Kew.), Saint-Louis, Missouri, in sylvis,secus amnes (Riehl n. 98 in h. Boiss. 

 forma foliis basi inaequalibus minus grosse serralis subtus- pubescentibus), 

 Ibid. (Engelman n. 1858 in h. Boiss. forma praecedens), civitate Ohio 

 (B. Frank, Un. itin. ann. 1837), Winnipeg, Riviere rouge (Bourgeau, 6 jul. 

 1859, in h. Cosson.), Carolina meridion. (h. Boiss.), Florida (D r Chapman 

 in h. Boiss. forma foliis basi obliquis, subtus vix puberulis). — Michx fil. 

 Amer. sylv.,edit. angl. tom. 3,1. 126; G. B. Emerson Report on trees and 

 shrubs of Mass. 1846, p. 286-297; PJanch. in Ann. des sc. nat. 1848, p. 268. 

 U. americana a et p Spach in Suit. h Buff., p. 109. U. floridana Chapm. Fl. 

 South. Unit. Stat. p. 416. ArbOr eiata, ramis saepe amosne pendulis. Variat 

 foliis glabrescentibus v. subtus molliter puberulis v. scabris , basi parum v. 

 valde inaequalibus. Formaft ad vivum in patria caute investigandae et forsan 

 ad varietates reducendae, quod speciminibus siccis frustra tentaretur. Species 

 ad U. pedunculatam proxime accedens. Vernacule « White Elm » ob cor- 

 ticem aibidum. — Discrimen inter U. Americariam et U. pedunculatam a 

 cl. Clos (iri Annal. Soc. d'hortic. de la Haute-Garonne, v. 14, p. 108, f. 1, 1 bis 

 et 2) e forma samarae elicitum non plane constans evadit : apud U. America- 

 nam enim non infrequenter samara bvata v. ovato-elliptica nec ut in iconibus 

 n° 1 et 1 bis supra citatis anguste elliptica. — Huc verosimiliter referenda : 

 U. racemosa David Thomas in Sillim. Amer. Journ. 1831, v. 19, p. 170, 

 cum icone, e comitatu Cayuga in statu New-York et e regione adjacente, 

 nobis descriptione et iconis facsimile tantum nota, inflorescentiis interdum 

 foliosis (verosimiliter monstrose) atypo recedens. (v. s. in herb. plurimis.) 



3". U. alata (Michx Fl. bor. am. 1, p. 173), altitudine mediocri ramis passim 

 late suberoso-alatis, foliis parvis lanceolatis acutis parum acuminatis basi l.e- 

 viter emarginata subaequalibus argute duplicato-serratis supra glabriuScuiis 

 subtus pubescentibus v. glabrescentibus, perianthii lobis obovato-spathulatis 

 eciliatis tubo longioribus, ovario dense sericeo, samarae parvae margine pilosae 

 disco pubescenti-piloso. <r In Americas septentr. regionibus australioribus , 

 nempe Yirginia ipferior et plagae maritima? Georgiae et Carolinae (Michx.) 

 - prope Nov. Aureliam (Dummond in h. Hook.), ad regiones occident. districtus 

 Tennesee (Michx), ibi ad French broad river, prope Dandridge (Rtigel in herb. 

 Schuttlew. et Boiss.), in Kentucky, ubique (Michx), ibid. prope Lexington 

 (D r Sb.ort in h. Hook.). — Mich. fil. N. Am. sylv. 3, t. 127; Planch. 1. c. 

 p. 270. U. Americana g alata Spach 1, c. U, p. 109. Vernacule : Wahoo. Spe- 

 ciesN. Americaqafl proxima, tamen characteribusadhibitispraecjpueperignthij 

 forrfla manifest? distincia, (v, s, in }t'. Hook., Cand., Boiss.,'De;ile) 



