26 Bulletin of the Unversity of Texas 
Pag3 
(d) Leaflets 5-11, entire or 
toothed, fruit a samara....Oleaceae........ 150 
2. Leaves twice pinnate. 
a. Leaves with an odd leaflet. 
(1) Fruit clusters of yellow drupes, 
plant, not LhOrny. wci.2 ees ee Melia. cca 128 
(2) Fruit a pod, tree thorny, leaves 
Welry ares. wg ee ieee Ayahia A. 5 tees 147 
b. Leaves without an odd leaflet. 
(1) Pinnae 2. 
(a) Leaflets, 2-4 pairs, small...Cercidium ...... 120 
(b) Leaflets numerous, min- 
ute, leaves in fasicles..... Parkinsonia..jsi4a 
(2) Pinnae 2-4, leaflets numerous...Prosopis ....... 114 
a3) 2Pinnaé. 409r Motes wes ee cit Mimosaceae ....114 
3. Leaves both once and twice pinnate on 
the same street x. ees eis ceteie s ace ane Gleditsia «oc... 120 
II. Leaves simple. 
A. Leaves opposite or whorled. 
1. Petiole of leaf long, more than 1% inches. 
a. Blades: palmately 3-)" lobed =... 4-2... o.< Aceraceae ...... 134 
b. Blades entire or with 1 or 2 laterai 
lobes. 
(1) Fruit an elongated capsule........ Catalpa in 
Rhinanthaceae. .155 
(2)-Fruit. an ovoid capsule: . 2.2. ss Paulownia in 
Rhinanthaceae .155 
2. Petiole of leaf short, less than 1% inches. 
a. Blades entire. 
(14) “"Erees: with thGrns. 24. sees saree Karwinskia in 
Frangulaceae ...139 
(2) Trees without thorns. 
(a) Fruit fleshy. 
x. Veins of leaves prominent- 
ly curved, fruit a red drupe.Cynoxolum .....145 
y. Veins not prominently 
curved, fruit a black drupe..Chionanthus ....154 
(b) Fruit dry. 
x. Fruit an elongated persist- 
ent pod, leaves linear some- 
times-alternates..3. Aves aad OHIOPIS® ss cs oes 156 
y. Fruit a globose structure of 
nutlike -bodies2:...)t:5 dears Cephalanthus ..157 
b. Blades undulate or serrate. 
(1) Blades finely serrate, the nerves 
pubescent beneath with deep red 
COMM aC WIN, Messed ees as ob che OE ViIbULRUnN 3.5 oe 158 
