Lecture Midterm 2 - Generic Characteristics [2208]

Arbutus

trees and shrubs with simple evergreen leaves; flowers are urn-shaped in a panicle inflorescence; fruits are a berry

Arctostaphlyos

shrubs (and small trees) with simple evergreen leaves; flowers are urn-shaped with poricidal anthers, fruits are drupes with several fused or free seeds inside.

Gaultheria

shrubs with simple evergreen leaves; flowers are urn-shaped on a one-sided inflorescence, fruits are a berry

Rhododendron

trees and shrubs with simple evergreen or deciduous leaves, showy weakly bilaterally symmetric flowers, fruits are capsules dehiscing from the base or tip

Vaccinium

shrubs with simple evergreen or deciduous leaves; flowers urn-shaped with poricidal anthers, fruits are edible (delicious) berries

Garrya

dioecious shrubs and trees with opposite phyllotaxy and showy pendant catkins; often with everygreen leaves; endemic to North America

Ribes

deciduous shrubs with alternate phyllotaxy and simple, palmately lobed leaves often found on short spur branches that may have prickles and/or spines; flowers 4- or 5-merous; fruits are (generally delicious) edible berries

Fremontodendron

trees and shrubs with palmately lobed evergreen leaves covered in stellate trichomes; flowers with no petals and bright yellow sepals.

Dendromecon

shrubs with unlobed evergreen leaves; flowers symmetric with yellow petals, terminal on branches and placed singly; fruits are cylindric and dehisce from base

Ceanothus

shrubs (small trees) with evergreen or deciduous leaves (may be 3-veined from base); opposite or alternate phyllotaxy; flowers 5-merous with spathate petals and deltate sepals. Fruits are 3-lobed capsules.

Frangula

shrubs with leaves pinnately veined (abaxially raised), flowers 5-merous with tiny petals and deltate sepals; winter buds without scales; fruits are drupes with 2-3 stones.

Rhamnus

shrubs with leaves pinnately veined (generally abaxially raised), flowers tiny or absent petals and deltate sepals; winter buds with scales; fruits are drupes with 2-3 stones.

Atriplex

herbs or shrubs found on saline soils, with powdery/mealy leaves and alternate phyllotaxy

Eriodictyon

shrub (or small trees); leaves simple, hairy, narrow, and cauline; flowers 5-merous with fused corolla and calyx and stamen shorter than petals

Umbellularia

tree endemic to California with aromatic (spicy) evergreen, unlobed leaves

Larrea

desert shrub with opposite phyllotaxy, swollen nodes, and compound leaves with two leaflets fused at the base (look like a little Pacman)

Adenostoma

shrubs endemic to the California Floristic Province with shredding bark; simple, alternate, evergreen leaves, and 5-merous flowers.

Amelanchier

leaves simple, deciduous often with teeth on the distal margin; stipules deciduous; inflorescences terminal with 5-merous flowers, fruits (berry-like pome) edible

Cercocarpus

leaves evergreen on short spur branches, fruit an achene with a feathery tail

Chamaebatia

leaves odd 2-3 pinnately compound (fern-like)

Heteromeles

shrub (small tree) endemic to CA Floristic province; leaves evergreen, simple, serrated; fruits bright red pome appearing in late fall/ winter

Holodiscus

shrub with simple, alternate, toothed, leaves; inflorescence persistent and many-flowered; flowers 5-merous with pink to cream petals

Prunus

leaves simple, alternate; often on short spur branches; leaves with gland at blade-petiole junction; fruit a (generally edible) drupe

Purshia

shrub with evergreen leaves, 3--9 pinnate lobes; margins generally roled under

Rosa

shrub with odd-pinately compound leaves, generally deciduous; stems usually with straight or curved prickles; stipules attach to leaf petiole; flowers 5-merous.

Rubus

shrubs and vines with simple (palmately lobed) or palmately compound leaves with toothed margins; fruits generally aggregate and edible; stems may have prickles.

Pinus

evergreen trees with needles borne in fascicles of (1)2-5; seeds in persistent cones with bracts fused to scales

Abies

evergreen trees with apetiolate needles attached directly to stem and upright cones that fall apart at maturity

Picea

evergreen trees with apetiolate needles attached to woody pegs, pendant cones that stay intact. Needles often stiff and 4-sided.

Pseudotsuga

evergreen trees with petiolate needles attached directly to the stem, pendant cones with 3-pointed bracts.

Tsuga

evergreen trees with petiolate needles attached to woody pegs on hairy stems, pendant cones that stay intact.