20 



Leaves 5 in a Vmiidle, 0-12 em, long IP. Strobus. 



Lea^'es 2-3 in a l)nndle. 



Scales of cones unarmed, kavfs usually 2-4 cm. long 2 P. Banksiana. 



Scales of com s tijiped with a slioi't spine, leases usually- 



o^(■l■ 4 cm. long 3 P. virginiaua. 



1. Piiiiis Slrobus Linnteus. AVhite Pine. Plate 2. Bark 

 greenish ami smooth on >'oiinfi' trees, becoming reddish or gra.y and 

 furrowed on old trees; young twigs scurvy-pubescent, soon snu)oth 

 ;ind light brown; lea\-es normally 5 in a I)undle, sometimes more, (i-12 

 cm. long, 3-sid<>d, shar]vpointed, Ijluish-green, maturing and falling 

 at enil of second S(>ason ; cones ripening at en<l of second season, usually 

 10-20 cm. l(.)ng: wood light, soft, not sti-ong, '\\'oi'ks easily, takes a good 

 jxilish, and warps little. 



Distribution. — Newfoundland to Manitoba, south to Iowa., Ken- 

 lucky and along the Alleghaii}' ]\I(uintains to northei'u Georgia. The 

 mass distribution of this species is to the north of our a,i-ea,, and in 

 Indiarta it is local and found in small nundieis. It is a common ti'ee on 

 some of the dimes bordeitng Lake Michigan, and is found locally 

 throughout the area, liorik'ring Lake Michigan. Its distribution in this 

 part of the Htate has not lieen studied, l.)ut it is believed that in Lake 

 and Porter Counties it is not at present found far from the Lake. 

 Blatchley' reports "a lhick<>t of this species alsout a ]ieat bog on the 

 Hayward farm one mile east of Merrillville in Lake County." The 

 witter has seen it as a frequent tree in a blaidv oak woods al)oiit four 

 mi](>s southwest of Michigan City, als<j c|uile a, number of large trees 

 seven miles northeast of Michigan City in a swampy woods, associated 

 rt'ith white elm, black ash, soft ma]ile, etc. 



Xieuwland- reports a single tree found in a tamarack swamp 25 miles 

 east of ]\Iichigan City near Lydick in St. Joseph County. The next 

 a])i)ea.rance of this s]X'cies is to the south in Warren County on the out- 

 croi)s of sandstone along Big Pnie, Little Pine, Pock ami Kicka])oo 

 Creeks. It is found more or less on bluffs of these creeks. It was the 

 most abundant along Big Pine Creek, and followed u]) the creek for 

 a distance of about ten miles, or midway lietween Rainsville and Indian 

 Village. To the south it is next found in Fountain Cotmty on the out- 

 cro))s of sandstone along Big Shawnee and Bear Creeks. Pi'anklin 

 Watts who owns the "Bear Creek Canyon" just south of Fountain 

 says he renuMubers the area before an>- cutting was done along the 

 creek. He says that the white pine was a common tree along the cre(d< 

 for a distance of half a mile and that a few scattered trees were fotuid 

 as far as 40 rods from tlie creek. He stated that the largest trees were 



ilnil. (icol- Ifi'pt. li2:!»S:lX',)S. 

 ■jAmer. Alid. Nat, :i :7(1 :1 !l i:i. 



