302 
Falls, in Northern Georgia. The foliage, fruit, stone, etc., of my 
specimens are similar to those figured “by Prof. Sargent in his 
Silva. The range given for the species extends only as far south 
as the valley of the St. Lawrence; however, the tree is probably 
more widely distributed than we are aware of, and we would 
naturally expect to find it in and about the Appalachian Mountain 
System. : 
The species is easily separated from P. Americana by its 
larger leaves, the larger and oblong fruit, and the strongly crested 
stone. The leaves of P. Americana are rather small, the fruit 
globose and the stone without a crest. 
_ TRIFOLIUM SAXICOLUM Nn. sp. 
Perennial by a strong root and numerous stolons, stout, gla- 
brous, much branched from a woody base, procumbent, sone a 
slightly ascending. Branches more or less creeping, the 0 . 
portions becoming woody and covered with dry, membranous, 7 
chaffy stipules; internodes short, 3-17 mm. long, increasing ri 
length towards the ends of the branches; leaves palmately-trifol 
olate, numerous, rigid; stipules 6-8 mm. long, lanceolate, ge : 
acuminate, partly sheathing the branches; petiole 5-2.5 bat 
long; leaflets obovate or obcordate, 3-8 mm. long, short-stal like 
sometimes emarginate, with very sharp spine or pe > 
teeth except near the base, teeth sometimes double; secon ode = 
nerves straight and parallel, sometimes forking near the page 
peduncles five-angled, 2-6 cm. long; heads 40-70 flowered, e ss 
dense; flowers white, drooping on deflexed pedicels in por | 
calyx narrowly-campanulate, 3 mm. long, cleft to the middle ae - 
fine subulate teeth, upper teeth shorter than the lower pt s 
corolla twice or thrice as long as the calyx when mature; us ~— 
lum undulate on the borders, erose at the apex; legume ee e 
long, one to three-seeded, style persistent; seeds 1 mm. : ye 
orbicular, ovoid, smooth, orange colored or reddish. : 
Found at the southern base of Stone Mountain, ae 
growing in the loose piles of granite, altitude 1,100 lent 
_ observed elsewhere in the mountain or vicinity. (Plate 212.) a 
The species is related to 7: Carolinianum, but is separated i - 
that and all our other species by its strong characters mentione® 
above. 
- 
TRIFOLIUM HyBRIDUM L, Sp. Pl. 766 (1753). ee 
Although extensively naturalized and thoroughly estab ; inet 
in the Northern States, this species has been slow in ROR ra 
