•Vi I'iKi.h Man'uai. 



> Pinus banksiana Lanih. Jaok rim-. A slender 

 tree with spread in-^ branches, the bark becoming llaky. Wood 

 li.u^ht and rather soft. In sandy soil. X. R. and X. W. Terr., 

 .south to Me.. X. ^".. 111., and Minn. 



-^. Pinus echinata Mill. Veilow Pine. A large tree 

 with spreading branches; leaves sometimes in H's. sometimes in 

 jl's Wood rather hard and very valuabe : much used as lum- 

 ber. .\lso furnishes some turpentine. Produces shoots from 

 >tumps. In san(l\ s(^il. X. ^'. to b'la.. ill.. Okl., and Tex. 



1". Pinus piingens L.anib. Table-mountain Pinr. A 

 tree with spreading branches, the old bark rough and in 

 Hakes, leaves sometimes in .'Vs. Wood light and soft: much 

 used for charcoal. X. J. to Cla. and lenn. 



11. Pinus virginiana Mill. Scrub Pine. A slender, 

 usually small tree with spreading or drooping ])ranches ; the 

 old bark flak\- and dark-colored. Wood very resinous, soft 

 and dura1:)le but of poor quality. In sandy soil. L. I. to S. C. 

 Ala.. Tenn., Ohio, and Tnd. 



J uiiipcracrac. junii)er Family. 

 .Sul) family. Cnf^rcssotac. 



s. Thiaja 1.. .\rborvitac. 



Evergreen trees or shrubs with decidedly tlaitencd and 

 fan-like twigs, and with naked buds, the small leaves oppo- 

 site, scale-like, appressed and 4-ranked : carpellate cone oblong, 

 with li-lu scales the 4 upper fertile. 



Resinous and aromatic: flowers minute, nionecious : ovules 

 usually 2 on each scale, erect : scales dr\- coriaceous, not 

 peltate. 



1. Uranchlets spreaditig more or less horizontally with 

 a distinct upper and lower side : carpellate cones 

 pendulous, the thin scales appendiculate below the 

 ai)e.\ ; seeds winged, f. occicioitalis. 



1. Pranchlets in a vertical ])lane with both sides alike: 

 carpellate cones erect, tlie scales with a prominent 

 horn-like process below the apex : seeds wingless. 

 T. orient alis. 



1. Thuja occidentalis L. American Arbor vitae. 

 Usuallv a small conical tree with fan-like 1)ranches. Self- 



