EFB 336 Lab 1 trees Added Info

Betulaceae, Alnus rubra

Leaves:

Doubly serrate

Dark top, light bottom

Axillary buds located between the petiole and twig

Pith:

Triangular "terate"

strobili clustered in 3 or 4 almost woody and bunched

Betulaceae, Betula alleghaniensis

smells wintergreenie if you scrape the bark

big lenticels on bark

peeling and shiny bark

Betulaceae, Betula papyrifera

simple alternate ovate leaves with rounded or obtuse base

doubly serrate margin

dark aments in 2 or 3s per bunch

Betulaceae, Betula populifolia

deltoid leaves with truncate base, doubly serrate

white twig with lenticels

solitary aments

naturally multi stemmed

Juglandaceae, Carya cordiformis

scaleless and sulfur colored buds

big compound leaves with a single leaflet at end

dehiscent fruit

HEART SHAPED NUH

interlaced deep ridges on trunk

Fabaceae, Gleditsia tricanthos

demon spikes

pinnate to bipinnate compounds

twelve inch long bean on female

Pinaceae, Larix laricina

decidious conifer

leave on spur shoots.

three sided leaves

tiny cones

Pinaceae, Picea glauca

glaucous needles, aromatic

radially aligned needles

cylindrical cone, fairly small

bright blue gray needeles due to waxy coating

Pinaceae, Picea mariana

capitate pubes on twig

single needle per sterigmata

needles sparce on bottom branches

errose cones (nail biter)

pendent cones

shorter needles, blueeesh green but not so much as white

coin about the diameter of a nickel small

Pinaceae, Picea rubens

no hint of blue on the needles, bright green greeneesh

foward pointed needles

Pinaceae, Pinus banksiana

resinous serrotinius cones

needles on fascciles of two

****ed looking

Salicaceae, Populus tremuloides

suborbicular leaves

flattened petiole

bark like paper birch but doesnt peel

clonal, often occurs in bank of many "trees"

Salicaceae, Populus balsamifera

round petiole, terete, can roll between fingers,

dark green shiny upper leaf,

bottom gray/white

rounded serrations on leaf