-\. 



534 pe:ntandria digynia. 



gemniis lafia densa, fulva, [ sides ; buds tomenlose, 

 tomentosis; floribus ses^ i with a thick, tawiij woolj 

 silibus. Pers. ex Mich. ) flowers sessile. 



Mich. 1, p. 172* Pursh, L p. £00. 

 17. rubra, Mich. A.rb. For. 3. p. 278. 

 U. campestris ? Walt, p- 11 L 



A tree generally of smaller size than the preceding- Leaves much 

 larger, oval, doubly serrate, equal at base, and sometimes slightly 

 cordate, very rough. Flowers nearly sessile, f Stamens 5 — 7.) Stig^ 

 mas purple. Samara pubescent. Mich. 



Gro AS around Columbia, in fertile spots ; rarely seen in tlie Io\v 

 country. The flowers, as in the other species of Ulmus, expand be- 

 fore the leaves. 



Flowers February— March, Slippery Elm. 



3 



' 3. Alata, 



■ U. ramis utrinqiie ala- | Branches on each side 

 to-suberosis ; foliis obu. winared with a cork-like 

 loiigo-ovalibus, sensim a- bark ; leaves oblong ova], 

 cutis, basi subjcqnalibus ; | acute, nearly equal at 

 fructu pubescente, ciliato. I base ; fruit pubescent, ci- 

 Pers. ex Mich. j liate. 



Mich. 1. p. 173. Pursh, 1-p. 200. 

 Mich. Arb. For. 3. p. 275. 

 U. pumila, AValt. p. 111. 



A small tree, rarelv exceeding 30 feet in height : remarkable for the 

 corky excrescence which grows along the branches, on two opposite 

 sides. Leaves nearly sessile, oblong lanceolate, acute, not acumi- 

 nate* doubly serrate, equal at base. Samara pubescent and ciliate. 



Grows, like the U. Americana, in close, fertile soils. 



Flowers February — March. Whahoo^ 



In our low country, however, the name whahoo is even now indis 

 criminately applied to every species of Elm. 



PLANERA. Gmel. 



Calyx campanulatus, | Calyx campanulate, 

 8 — 5 fidus. Corolla 0. j 3 — 5 cleft. Corolla 0. 

 Stig7nata2. Nux i sper- j Stigmas t. Kut 1 seed- 

 ma, scabrata. | ed, roughened. 



1. Gmelini. Mich. 



Sp. pi. 4. p. 967. Mich. 2. p. 248. Pursh, I. p. 115;^ 

 Anon, aquatica, W " ' 



V, ulmifolia, Mich. Arb. Forest. 3. p. 283. 



f 

 •t 



* 



