332 POMACEAE 
2. C. punctata, Jacq. (Fig. 6, pl. 72.) Larar-rruitep THorn. Small 
tree, similar to above, leaves generally broader, and thorns only about 
% as long. Leaves, when young at least, hairy beneath. Fruit about 1 
in. diameter, globose, red or yellow. 
3. C. uniflora, Muench. (Fig. 4, pl. 72.) Dwarr TuHorn. Shrub, 3 
to 8 ft. high, with slender thorns about 1 to 2 in. long. Leaves pear- 
shaped, with serrate borders Fruit globose. Flowers with narrow lance- 
shaped deeply incised calyx lobes, petals shorter than sepals; flowers not 
generally in clusters but single or few. In southern part of our section. 
4. C. coccinea, L. (Fig. 2, pl. 72.) Scarter Torn. Shrub or 
small tree, with reddish branches and stout spines 14 to 2 in. long. 
Leaves on slender leaf-stalks, broad and abrupt at base or somewhat 
heart-shaped, borders serrate and deeply incised, point acute. Flowers 
many in a cluster, each about an in. in diameter. Fruit red, globose. 
Growing in thickets and pastures. Blooms in April or May. 
5. C, rotundifolia, (Ehrh.) Borek. (Fig. 1, pl. 72.) GLANDULAR 
THorRN. Small tree similar to above, with smaller leaves which are 
tapering at base and rather smaller than No. 4. Flowers about the size 
of No, 4. Fruit pear-shaped, red. Often grows with C. coccinea and 
blooms later. 
6. C. tomentosa, L. Prar THorn. Small tree much like the two 
preceding. Thorns generally less numerous. Leaves serrated and deeply 
incised and tapering to base, rather rounded at apex. The leaf-stalks and 
larger prominent veins of leaves quite downy when young. Fruit oblong. 
Less common than Nos. 4 and 5. 
7. C. macracantha, Lodd. (Fig. 5, pl. 72.) Lone-sprinep THORN. 
Similar to last three. Spines much larger, 2 to 5 in. long. Leaves re- 
semble those of No. 6. Fruit hairy, rather larger than that of No. 4. 
8. C. Oxyacantha, L. (Fig. 8, pl. 72.) Hawrnorn. Leaves 3- to 
T-lobed. Clusters many flowered. Fruit small. Usually a shrub but 
sometimes a tall tree. Sparingly escaped from cultivation, May. 
9. C. mollis, (T. and G.) Scheele. (Fig. 7, pl. 72.) Rep-FRUITED 
THorN.  Resembles C. tomentosa, but fruit is quite hairy. Rarely in 
northern section of our area. May. 
Famity IX.—DRUPACEAE. Pium Famity 
Trees and shrubs, bearing fleshy fruit enclosing a hard woody 
“ stone,” which is irregularly grooved or smooth. Bark exuding 
a clear gum. Leaves simple, alternate, with small stipules which 
fall early. Flowers in flat or, less frequently, in elongated clusters. 
Petals 5; sepals 5; stamens numerous; pistil 1. 
1. PRUNUS. L. 
Shrubs and trees with, mostly, edible fruit. Fruit a fleshy drupe or 
stone fruit. Flowers white or purplish in clusters of various forms. 
Petals 5; sepals 5; stamens numerous. 
