^43 ICOSANDRIA MONOGYNI.V 



A small tree, mth expanding geniculate brandies, fnrming a compact 

 round head; branches glabrous, purple, spinj, the spines bearing 

 leaves. Leaves shbrt, generally v/ith a sliglit acu»iinatit>n. Flowtrs 

 in fascicles, terminating the rigid lateral brandies- Peduncles about 

 an inch long. Segments of the calyx slightly cleft at the summit 

 Petals nearly round, white. Fruit small, spherical, red. 



The fruit, when ripe, varies frequently in culour. It is pleasantly 

 acid, and is employed in preserves. 



To the P. Pennsylvanica this plant has great affinity, yet it appears 

 to differ in several points. Its leaves are proportionally much shorter 

 and more finely serrulate. Its umbels are never elongated, and its 

 flowers always expand and fall bfifore the leaves unfold. 



Grows in very dry, sandy soils. 



Flowers March. Ripens its fruit in July and August. 



ft. CmcASA. Mich, 



P. floribus fasciculatis, [ Flowers fasciculate, 

 ^ateralibus fasciculis ses- lateral fascicles sessile ; 

 silibus ; foliis angusto- leaves narrow lanceolate, 



branches spiny, 



lanceolatis 



mis spinescentibus, gla | dabt 

 bris* E, 



Mich. 1. p. 284. Pursh, I. p. 332. 



P. insititia, Walt- v46 ? 



A small tree 10—15 feet high, with branches geniculate, expands 

 ing, crowded, forming a compact head. Leaves on shorf petioles 

 generally acute, Klabrous* — - 



I 



each cluster, on peduncles about half an incli Ion"-; clusters sessile 

 Calyx glabrotts, with the set^ment!, slightly ciliafe. ComUa white 

 ^nther^ 12—18, as long as the corolla. Fruit globular, red or ' 



/This plant is siHgularly doraestic, foUowinff man in £liis climate 

 •wherever he extends lus settlements^ and growing without care in all 

 cultivated high lands. It is found in all the old Indian settlements, 

 and, according to their traditions, is said to have been brouglit by the© 

 from the western side of the Mississipi. The fruit, like tliat of most 

 cultivated species, varies much, and some of its varieties are good. 

 Orows in all soils excepting those which are frequently inundated- 

 blowers Marco. * •' 



7' HiEMALis. Mich. 



P arborea ; stipulis se- I Arborescent ; stipuks 

 taceo-contpositis ; foliis | setaceous, compound ; 



ovuli!»u3 ohovatisque, ab- leaves oval and obovate, 

 tuple promisseque acu- | abruptly and conspicu- 



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