MONOECIA MONADELPHIA 549 



• * Leaves in threes. 



numerous branches, 



3. P. momA, Marsh. Leaves in threes, with the sheaths short; 

 cones ovoid, often in clusters ; spines of the scales rigid, reflexed! 

 Beck, Bot. p. 339. Icox, Mx.f Sylva, 3. tab. 8. 

 Riom Pints, Ful#o — Pitch Pine. Yellow Pine. 



StemZOtooOor 60 feet high, and 1 to 2 feet in diameter, with u. 

 -the lower ones falling off, and leaving a ruggid knotty stem, with a rough fissured 

 bark. Leaves 2 to 4 inches long, narrow, linear, acute, slightly keeled, striate, 

 smooth, scabrous on the margin, bound together at base, in fascicles of 3, by a 

 short sheathing membrane. St aminate flowers in ovoid-oblong clustered amenta. 

 Cones 2 to 4 inches long, ovoid, sometimes scattered, but often in clusters round 

 the branches ; scales cuncate-oblong, thickened at summit, with a rigid sub-ancip- 

 ital reflexed acumination. 



Bab. Mica-slate Hills: not common. Fl. May. Fr. Sept. 



* * * Leaves in fives. 



4. P. Strobtjs, L. Leaves in fives, scarcely sheathed at hasc, slender ; 

 cones oblong, subcylindric, pendulous ; scales without spines, loose! 

 Jieck y Bot.p. 339. Icox, Mx.f. Sijlva, 3. tab. 10. 



Yulgo— White Pine. Weymouth Pine. New England Pine. 



Stem 40 to 60 or 70 feet high, and 18 inches to 2 or 3 feet in diameter, straight, and 

 covered with a smooth bark, especially while young, branched, the branches'ver- 

 ticillate, rather slender, and, when the trees are crowded together, chiefly at tho 

 summit. Z*ar*s 3 to 5 or G inches long, very narrow, linear, acute, keeled, or 

 sub-triquetrous, smooth, minutely denticulate or scabrous on the margin, of a 

 bluish or glaucous-green color, aggregated in fascicles of 5, which are numerous 

 on the branches, and stand on short protuberances, but are without any sheath 

 at base, except the deciduous bud-scales. Staminatc flowers in small ovoid 

 amenta which are sessile and clustered round the base of the young branches form- 

 ing a linear-oblong spike. Cones 3 to 5 inches loug, and an inch or inch and half 

 in diameter, nearly cylindric, somewhat curved, pendulous, generally smeared 

 with the exuding turpentine; scales cuneate-obovate, slightly thickened at sum- 

 mil, but not acuminate, loosely imbricated. 



Uab. Rich woodlands; old fields, &c. not common. Fl. May. Fr. Aug— Sept. 



Obs. This species docs not often attain a large size in this County ; but on the 

 rich bottom lands along the branches of the Susquehanna it becomes a noble tree, 

 -frequently more than 100 feet in height, and 4 or 5 feet in diameter, with the' 

 •tern straight, and free from branches except near the summit. The value of its 

 wood, in affording boards, shingles, and other lumber, is well known. Twelve or 

 fourteen additional species (including the Firs, and Larches) are enumerated in 

 the U. States. 



rr M 439. PHYLLANTHUS. L. JVutt. Gen. 774. 



[Gr. Phyllon, a \c&(,&,Atahos, a flower; the flowers being connected with the leaves.] 



Stixixate Fl. Perianth G-parted ; segments spreading, colored, 

 persistent Stamens 3, very short, spreading, united, or approximate, 

 at base; anthers didymous. Pistillate Fl. Perianth as in tho 

 •laminate flowers. Styles 3, bifid. Capsule 3-cclled ; cells 2-voIvcd, 

 1 or 2-seedcd. 



