ULMus. PENTANDRIA. DIGYNIA. 29i* 



ovate, petiolate, acuminate, scabrous above, pubescent beneath. 

 Flowers appearing before the leaves, in loose lateral fascicles. 

 Calyx purplish-red ; sei;ments rounded, villous. Stamens 

 5 — 8, exserted ; filaments subulate ; anthers purple. Style 2, 

 short, reflexed. Samara oval, half an inch long, reticulate ; 

 margin with a dense villous fringe. 

 Hab. in woods; common. April. Common Elm. IVliite Elm. 



2. V.fulva Mich.: leaves oval-oblong, much acumin- 

 ate, pubescent on both sides ; buds tomentose ; flowers ses- 

 sile. Mich. Fl. I. p. 172. Pursh FL 1. p. 200. E l- 

 liott Sk,\, p. 333. Roem. ^V Schult. W.ip. 30\. U. 

 aspera M u h I. Cat. p. 28. U. rubra Mich. fl. Arb. III. 

 p. 278. t. 6. 



A tree 20 — 25 feet highj buds covered with a dense fulvous 

 wool. Leaves sometimes a little cordate at the base ; nerves 

 beneath tomentose along the midrib. Floivers conglomerate, 

 10 — 15 in each head, on very short pedicels. Segments of the 

 calyx very obtuse, ciliate with brown hairs. Stamens gene- 

 rally 7 ; filaments twice as long as the calyx ; anthers 2-cell- 

 ed, dark purple. Styles 2 ; stigmas glandular-pubescent, 

 purple. Samara suborbicular, pubescent. 



Hab. On rocky hills. Hoboken, New-Jersey, &c. April. 



Sli/i/iery Elm. Red Elm. 



3. U. nemoralis Ai t. : leaves oblong, somewhat smooth, 

 equally serrate, nearly equal at the base ; flowers sessile. 

 ^ i t, Kew. I. p. 319. Pursh Fl.L p. 200. 



Hab. On the banks of rivers. New-England to Virginia. 

 Pursh. + 



This species is referred, by Roejne r iff Sc hull e s, on 

 the authority of Smi t A, to Planera Richardi of Mich au x. 

 As, however, the plant is not well known, I have concluded to 

 let it remain in the genus where it was placed by Ait on. I 

 have specimens of an Ulmus from North-Carolina, sent to 

 me by Mr. S c hw einit z, under the name of U. nemoralis, 

 which agree very well with Alton's description, but not 

 with that of Mich aux. The fruit being wanting, I cannot 

 determine satisfactorily whether it hz a species of Ulmus or 

 of Planera, 



198. CELTIS. L. 



Polygamous. Perfect Fl. Ca/yx inferior, 5-part- 

 ed. CorollaO. *SV///tf 6- thick, divaricate. ZJ/'w/Jd-l -seeded. 

 Staminiferous, CabjX 6-parted. Stamens 6. 

 Gen. pi 1591. Nu 1 1. Gen. I. p. 202. .Tu s s. p. 

 403. Lam. Ill, t. DCCCLXXXIV. Eoem. ^ 



