Rosids III

FagalesBrassicaceae

RutaceaeAnacardiaceae

Aceraceae

Fagaceae

• Oaks

• Many tree species throughout N. America

• TREES with SINGLE NUTS ATTACHED TO SPINY OR SCALY CAPS

• One species in Colorado, Quercus gambelii

Fagaceae

Fagaceae

Quercus fruits = nuts = acorns

Quercus leaf

Quercus gambelii – Gambel Oak

Brassicaceae (Cruciferae) — Mustard family • FOUR MEROUS (old name cruciferae, like a cross)

• HERBS, rarely shrubs

• Tetradynamous stamens = 4 stamen, 2 long, 2 short

• Gynoecium with a superior, 2- carpellate/loculate

ovary, with axile-parietal placentation and a usually 2-

valved, dehiscent fruit with a replum (silique or

silicle).

• 365 genera / 3250 species

Brassicaceae

Brassicaceae

Glucosinolates - major plant secondary products in the Brassicaceae and close relatives.

- deter herbivory and parasitism

- flavoring agents in the commercially important members of the Brassicaceae, such brocolli, cauliflower, and mustard.

• Broccoli, brussels sprouts, cauliflower, cabbage, collards, kale (all cultivars of Brassica oleracea)

• Rutabaga and canola oil (B. napus), mustard (B. nigra), turnip (B. rapa)

• Arabidopsis thalliana is noted as a model for detailed molecular studies.

Brassicaceae

Brassica nigra

Cakile maritima

Cardamine californicum

Raphanus sativus

Thysanocarpus laciniatus

Malvaceae

• The Mallow Family

• Monadelphous stamen

• Mucilaginous plants

• Often with stellate trichomes

Malvaceae – Economic importanceGossypium spp. (cotton, the world’s most important fiber

plant) and Ceiba pentandra (kapok), in both of which the seed trichomes are utilized, and Corchorus spp. (jute), a bast fiber plant and source of burlap;

Theobroma cacao (cacao, the source of chocolate), Cola nitida (cola), Abelmoschus (okra), and Durio zibethinus (durian)

Ochroma pyramidale (balsa) and Pachira aquatica;

Brachychiton, Chorisia (floss-silk tree), Dombeya, Fremontodendron, Hibiscus (mallows), and Tilia (linden tree). Many others, such as Adansonia digitata (baobab, tropical Africa) are of great local economic or ecological importance.

Gossypium - cotton

Hibiscus sp. Kosteletskia virginica

Chorisia speciosa

Theobroma cacao – the source of chocolate

Anacardiaceae

• Cashew or sumac family

• SHRUBS W/ 3-LOBED OR PINNATE LEAVES

• 1-SEEDED RED OR WHITE BERRIES

• Poison Ivy and Poison Oak are in this family

• Important shrub ecologically, Rhus trilobata

Toxicodendron rydbergii

Toxicodendron rydbergii

Toxicodendron rydbergii

Rhus trilobata

Rhus trilobata

Anacardiaceae MangoMangifera indica

Anacardium occidentale; Cashew   

Anacardium occidentale; Cashew   

Aceraceae

• Maple Family

• TREES WITH OPPOSITE LEAVES AND WINGED SEENDS IN PAIRS

• Acer glabrum and Acer negundo (Box elder)

Aceraceae

Aceraceae insect and wind pollinated

Acer negundo – Box elder

Acer glabrum – Mountain Maple

Acer saccharum

• http://www.youtube.com/watch?v=PML-cjYzENU&feature=related

• Maple syrup is the boiled down xylem (commonly called sap) that the tree is sending up from the roots to the leaves to get the leaves started in the spring

• It’s about the only time the xylem is rich in sugars