ORDER CXI. MOKACEJ-:. 503 



nearly eessile. Stamens 5 — 7. Stigmas pnrple. Buds tomrntose. 

 /^/•«27 pubescent. — ^. Feb. — March. In fertile lands. 2n — ;;o fe.'t. 



Slippery Elm 



3. U. ala'ta, (Mich.) A midillp-piz'nl troc or blirul), ^vitli u cork-hkft 



excrescence on o[)posite sides of the brandies. Leaven nearly sessile, 



oblong-lanceolate, doubly serrate. Samara pubesceuL, ciliatA.— ^ . Feb. 



March, Fertile soils. 10—30 feet. Whahoo. 



Genus II.— PLAN'ERA. Mich. 5—2. 

 (In honor of John Planer, a German botanist.^ 



Floivers perfect. Perianth campanulate, 3 — 5-cleft. Sta- 

 mens 5. Stigmas 2. Xut l-seeded, roug-henod. 



1. P. Gmeli'ni, (Mich.) A middle-sized tree. Leaves ovate, acute, 

 glabrous, serrate. Flowers axillary, generally by threes. Perianth 

 3 — 5-cleft. Stamens 3 — 5. Stigmas 2, plumose. Nut roughened. — ^ . 

 Feb. — March. River swamps. 30 — 40 feet. 



Genus III.— CEL'TIS. L. 23—1. 

 (An ancient name for Lotus.) 



Floivers perfect. Perianth 5 or G parted. Stamens 5 or 6. 

 Styles 2, expanding. Drupe small, purple. 



1. C. occidenta'lis, (L.) a large tree. Leaves ovate, acuminate, .ser- 

 rate, unequal at the base, pubescent beneath. Flowera .^m.dL Fruit a 

 small berry, with a sweet pulp. — ^ . April — May. Rich soilrJ. 60 — 80 

 feet. Beacerwood. Sugarberry-tree. 



Order CXI.— MORA'CE.E. (Artocarpacece.) (Mulberry 

 Tribe.) 

 Floivers monoecious, in aments or heads. Perianth usually 

 divided, sometimes tubular or entire. Stamens 4, straight. 

 Ovary 1 or 2 celled, with a suspended ovule. Style 1, filiform. 

 Stigma bifid. Fruit a fleshy receptacle, covered by numerous 

 nuts. Seed suspended, solitary. Trees or shrubs. 



Gends L— MO'RUS. Tourn. 19—4. 

 (Morea, the Greek name of mulberry.) 



Flowers monoecious or dioecious, in spikes. Stt-rile florets 

 with a 4-parted perianth ; stamens 4. Fertile florets in dense 

 spikes, with a 4-parted perianth, which becomes succulent, en- 

 veloping the achenium, and forming an oblong, juicy, edible 

 fruit. Trees with milky juice. 



1. M, al'b.4. MoncEcious. A small tree, itai't?,? deeply cordate, un- 

 equal at the base, unequally serrate, nearly glabrous. — ^ . May. 

 Introduced. White Mulberry. 



2. M. eu'bra. Dioecious. A large tree. Leaves cordate, ovnto, acu- 

 minate, serrate, scabrous, pubescent beneath. Perianth 4-parted, be- 

 commg juicy. — V March. Rich soils. 20— 60 feet, lied ifulhrry. 



