103 
+ + Flowers solitary or in pairs: leaves small and often Fascicled ; drupe subglobose, 
velvety-pubescent, thin-fleshed : very low bra nehing shrubs, 
3. P. glandulosa Torr. & Gray. A low somewhat thorny shrub with pubescent 
ard very crooked branches,3 dm. or so high: leaves small, scarcely 2.5 em. long. pu- 
bescent, oval, obtuse, often narrowed at base, the serrations (as well as those of the 
calyx segments) spreading and very glandular: umbels 1 or 2-flowered,—Eastern 
Texas, and extending to Gillespie County. 
4. P. minutiflora Engelm. A low intricately branching shrub,3 to 6 dm. high, 
forming dense masses, glabrous: leaves fascicled, oblong or elliptical, very obtuse and 
usually entire and glandless, petioled, veiny, 6 to 10 mm. long: flowers solitary, 
subsessile, very small (3 mm. long).—Hills and dry slopes south of the Colorado and 
west into the mountains beyond the Pecos, 
** Flowers in racemes terminating leafy branches, therefore appearing after the leaves, 
late in spring, 
5. P. Virginiana L. (CHOKE-curRRY.) A tall shrub: leaves oval, oblong, or 
obovate, abruptly pointed, very sharply (often doubly) serrate with slender teeth, 
thin: fruit red, turning to dark crimson.—River banks of the Atlantic States and 
west to Texas and the Rocky Mountains. Its range in Texas is unknown. 
6. P. serotina Ehrh. (WILD BLACK CHERRY.) A large tree: leaves oblong or 
lanceolate-oblong, taper-pointed, serrate with incurved short and callous teeth, 
thickish, shining above: racemes elongated: fruit purplish-black.—Southward 
through Texas to the San Antonio, 
7. P. salicifolia HBK. A tree 6 to 9 m. high: leaves lanceolate or oblong-lanceo- 
late, acuminate or often long-acuminate, frequently more or less attenuate at base, 
the blade often 7.5 to 10 em. long: fruit round and black. (P. Capuli Cav. P. Capollin 
DC.)—Apparently only a Mexican tree, the form extending into southern and western 
Texas (in the mountains), as well as into New Mexico and Arizona, and which has 
been referred to the synonyms just quoted, being var. ACUTIFOLIA Watson, having 
smaller leaves (rarely 7.5 em. long), which are acute or rarely subacuminate, and 
often shrubby. 
*** Flowers in racemes from the axils of the persistent leaves of the former season, 
8. P. Caroliniana Ait. (WILD or MOCK ORANGE.) A tree 10 to 12 m. high: leaves 
oblong-lanceolate, acuminate, mucronate, entire or sometimes spinulose-serrate, cori- 
aceous, veinless, smooth and shining above: racemes dense, shorter than the leaves: 
fruit black, juiceless, persistent.—A species of the Gulf States extending in Texas to 
the Guadalupe. 
2. ERIOGYNIA Hook. 
Low cespitose perennials, with small and entire rosulate or imbricate 
leaves, racemose or spicate flowers, and mostly 5 pistils which become 
2 to 4-seeded coriaceous pods which are more or less dehiscent by both 
sutures, 
1. E. ceespitosa Watson, Cespitose on rocks, woody at base: leaves rosulate on 
the short tufted branches of the woody spreading rootstock, oblanceolate or linear- 
spatulate, silky on both sides, those of the scape scattered and narrower: flowers in 
dense cylindrical spikes on scape-like stems: calyx-lobes silky; filaments and styles 
exserted: carpels 3 to 8,somewhat villous or glabrous, 2-seeded. (Spirwa caspitosa 
Nutt.)—In the mountains west of the Pecos, 
3. SPIRZAA L. 
Usually erect and more or less diffuse shrubs, with serrate or lobed 
leaves, corymbose or paniculate inflorescence, and (in ours) a mem- 
branous woolly 1-seeded carpel which is very tardily if at all dehiscent. 
