FLORA OF TROPICAL AFRICA. 
Orpver CXXIII. ULMACE2. 
(By A. B. Renp1z.) 
Flowers (in tropical African genera) polygamous, regular, 
apetalous. Leaves of the perianth free or more or less united, 
calycine, generally 4 or 5 in number, segments imbricate or valvate. 
Stamens as many as and opposite to the perianth-lobes rarely more ; 
filaments not inflexed; anthers erect in bud, 2-celled, dehiscence 
longitudinal. Ovary superior, 1-celled; ovule solitary, pendulous 
from or below the apex of the cell, anatropous, with two integuments ; 
style (in African genera) central, 2-partite, branches stigmatose on 
the upper face. Fruit a flattened samara or an ovoid to globose 
drupe. Endosperm wanting or scanty. Embryo straight or 
curved.—Trees or shrubs. Leaves alternate, in two rows, simple, 
often unequal at the base. Stipules lateral, free, generally small, 
caducous. Flowers small, in axillary branched cymes, the fertile 
sometimes solitary. 
Species about 130; widely distributed in both temperate and tropical 
regions. 
Sus-Orpur I. Ulmoidew.—Flowers in the axils of scars 
of previous year’s shoots ; ‘as a samara ; wate 
straight aes iy . 1. HoLoprenea. 
Sus-Ornper II. Celtidiotdes. pias tn the axils of 
foliage-leaves of the same season ; fruit a drupe ; 
embryo curved. 
Branchlets unarmed (in African species) : 
Leaf-margin entire or weakly or irregularly 
toothed (serrate in C. kraussiana) ; fruit 
24-9 lin. long ; cotyledons broad . 2. CELTIS. 
Leaf-margin minutely toothed or seeuiines 
fruit about 1 lin. long ; cotyledons narrow 3. TREMA. 
Branchlets armed with axillary spines ... 4. CHRTACME. 
1. HOLOPTELEA, Planch.; Benth. et Hook. f. Gen. Pl. iii. 352. 
Flowers hermaphrodite with a few male. Perianth simple, calycine, 
divided. nearly to the base into 3-8, often unequal lobes. Stamens 
as many as the lobes but generally more, up to12. Filaments erect, 
long, free, ultimately exserted ; anthers roundish, 2-celled. Ovary 
rudimentary or absent in male flowers, in the fertile stalked, 
compressed, passing above into a pair of short spreading style-arms, 
FL. TROP. AFR. VI. SECT. I. PART I. B 
