Dendrology Lab #1

Scientific name for Southern Magnolia

Magnolia grandiflora

What family is Southern Magnolia in?

Magnoliaceae

What is a distinguishing feature for members of the Magnoliaceae family?

stipular scars that encircle the twig

Scientific name for Sweet Gum

Liquidambar styraciflua

What family is Sweet Gum in?

Altigenaceae

Scientific name for Tulip Poplar

Liriodendron tulipifera

What family is Tulip Poplar in?

Magnoliaceae

Scientific name for Chinese Privet

Ligustrum sinense

What family is Chinese Privet in?

Oleaceae

Scientific name for Japanese Honeysuckle

Lanicera japanica

What family is Japanese Honeysuckle in?

Caprifoliaceae

Characteristics of Southern Magnolia leaves

Entire, simple, alternate, leathery, ovate/elliptical, acute tips, semi-evergreen, short petiole compared to the rest of the leaf

underside of leaf: rusty pubescence (fuzzy)

Characteristics of Southern Magnolia buds

rusty pubescence (fuzzy), conical, valvate (two scales that open and split)

Characteristics of Southern Magnolia bark

smooth, mixed with plates (smooth when young)

Characteristics of Southern Magnolia fruit

conelike aggregate of follicles

dehiscent chambers clumped together

Characteristics of Sweet Gum leaves

palmate, acuminate tips, palmate venation, serrated margins, 5 points to the leaf

leaf scars have a triangular shape

Characteristics of Sweet Gum buds

have varnish, shiny, conical, imbricate scales

Characteristics of Sweet Gum fruit

spiny ball of capsules (contain seeds)

Characteristics of Tulip Poplar leaves

simple, alternate, deciduous, self-prunes (lower branches shade out and die), truncated at base of leaves, pinnate leaf venation, longer petiole than leaf, acuminate tips on the lobes

circular leaf scars on twigs

Characteristics of Tulip Poplar buds

duck bills!! valvate terminal buds

Characteristics of Tulip Poplar fruit

cone like aggregate of samaras (winged seed)

at the end of the samara is a hook

Characteristics of Chinese Privet

invasive species

simple, opposite, semi-evergreen

elliptical, entire margins, blunt tip on end

white pubescence (fuzz) on twigs

flowers arranged in panicles (loosely branched)

Characteristics of Japanese Honeysuckle

invasive species

simple, opposite, semi-evergreen

base of leaf is cordate, acute tip

woody vine uses twining (snakes between stuff and grabs on)

purplish black fruit

tubular, elongated stamens on flowers

Magnolia grandiflora leaf

Magnolia grandiflora fruit

Liquidambar styraciflua leaf

Liquidambar styraciflua fruit

Liriodendron tulipifera leaf

Liriodendron tulipifera

Ligustrum sinense leaves

Lanicera japanica leaf

Southern Magnolia

alternate or opposite?

alternate

Sweet Gum

alternate or opposite?

alternate

Tulip Poplar

alternate or opposite?

alternate

Chinese Privet

alternate or opposite?

opposite

Japanese Honeysuckle

alternate or opposite?

opposite