98 FAGACEAE. 



long, obovate in outline with 3 or 4 obtuse lobes on each side; the acorns are 

 ovoid, about 1' long, borne in cups about 3" high. 



Other kinds of oaks, formerly grown in Bermuda, are known to me only 

 by the record of Lefroy, of an oak, supposed to be a White Oak (Quercus alba 

 L.), North American, at Par-la-Ville, prior to 1877; by H. B. Small of the 

 same species at Rosebank, w^ell remembered by Dr. Bluck, which had disap- 

 peared before 1914 ; of three other North American oaks planted by Lefroy at 

 Mt. Langton, but made no growth during five years, and not there in 1913; and 

 by Eeade's statement, published in 1883, that Quercus nigra L,, also North 

 American, was said to grow at Richmond, this species also mentioned by Jones 

 in his list of 1873. 



Order 7. URTICALES. 



Trees, shrubs or herbs, the flowers with a calyx but without corolla, 

 small, not borne in aments, monoecious, dioecious or polygamous; ovary 

 1-ceIled, superior. 



Fruit not an achene ; trees, shrubs or herbs ; ovule pendulous. 



Trees with alternate leaves, the sap not milk}-. Fam. 1. Ulmaceae. 



Trees with alternate leaves and milkj- sap. Fam. 2. Moraceae. 



Fruit an achene ; herbs with small clustered greenish flowers, 



ovule erect or ascending. Fam. 3. Urticaceae. 



Family 1. ULMACEAE Mirbel. 



Elm Family. 



Trees or shrubs, with alternate simple serrate petioled pinnately veined 

 stipulate leaves, the stipules usually fugacious. Flowers small, monoecious, 

 dioecious, perfect or polygamous, clustered, or the pistillate solitary. Peri- 

 anth 3-9-parted or of 3-9 distinct sepals. Petals none. Stamens in our 

 species as many as the perianth-lobes or sepals and opposite them ; filaments 

 straight; anthers ovate or oval, longitudinally dehiscent. Ovary 1-celled 

 (rarely 2-celled), mostly superior; ovule solitary, pendulous, anatropous or 

 amphitropous; styles or stigmas 2. Fruit a samara, drupe or nut. Endo- 

 sperm of the seed little or none. Embryo straight or curved; cotyledons 

 mostly flat. About 13 genera and 140 species, widely distributed in tem- 

 perate and tropical regions. 



Drupes stalked, solitary in the leaf-axils. 1. Celtis. 



Drupes cymosely clustered in the leaf-axils. 2. Trema. 



1. CELTIS [Tourn.] L. 



Trees or shrubs, with serrate or entire pinnately veined or in some species 

 3-5-nerved leaves, and polygamous or monoecious (rarely dioecious?) flowers, 

 borne in the axils of leaves of the season, the staminate clustered, the fertile 

 solitary or 2-3 together. Calyx 4-6-parted or of distinct sepals. Filaments 

 erect, exserted. Ovary sessile. Stigmas 2, recurved or divergent, tomentose or 

 plumose. Pruit a small ovoid or globose drupe, the exocarp pulpy, the endo- 

 carp bony. Seed-coat membranous. Embryo curved. [Name ancient, used 

 by Pliny for an African Lotus-tree.] About 60 species, natives of temperate 

 and tropical regions. Type species: Celtis australis L. 



