Rosaceae Cucurbitaceae Malvaceae Rhamnaceae. Today 4 families
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1 Rosaceae Cucurbitaceae Malvaceae Rhamnaceae Today 4 families
2 Rosaceae (rose family) Overview World: 110 genera, 3000 spp. CA: 37 genera, 147 spp. Rosa Malus fusca Prunus ilicifolia (drupe) Rubus fruticosus Fragaria sp.
3 Rosaceae (rose family) Representative genera Rosa (roses)* Prunus ( stonefruits peach, cherry, plum, etc )* Malus (apple)* Pyrus (pear) Rubus (blackberry, raspberry, etc ) Fragaria (strawberry)
4 Rosaceae (rose family) Habit Trees, shrubs, or herbs Perennial Rosa Malus fusca Prunus ilicifolia (drupe) Rubus fruticosus Fragraria sp.
5 Rosaceae (rose family) Leaves Simple or compound Gen pinnately veined Often stipulate, (can be fused as in Rosa spp.) Sometimes in fascicles (e.g., Adenostoma fasciculatum)
6 Flowers Gen bisexual, radial Fls solitary, or INFL various Hypanthium present* Often subtended by bractlets Calyx Sepals gen 5, free* Corolla Petals gen 5, free* Androecium Stamens 5; 10-many* Gynoecium Pistil 1-many Stigma lobes 2-4 Ovary superior or inferior* Rubus armeniacus Prunus ilicifolia Rosa californica
7 Fruit: Highly variable*: achene, drupe, pome, follicle, aggregate fruit Rosa (achenes in hips ) Malus fusca (pome) Rubus fruticosus (aggregate fruit of many drupelets) Prunus ilicifolia (drupe) Fragaria sp. (achenes)
8 Some species we might see Adenostoma fasciculatum chamise, greaseweed
9 Some species we might see Prunus ilicifolia ssp. ilicifolia hollyleaf cherry
10 Some species we might see Prunus ilicifolia ssp. lyonii Catalina cherry, island cherry
11 Some species we might see Heteromeles arbutifolia toyon, Christmas berry, CA hollywood
12 Some species we might see Cercocarpus betuloides mountain mahogany
13 Some species we might see Rosa californica wild rose
14 A cool species we won t see Malus fusca Oregon crabapple Pacific crabapple
15 A cool species we probably won t see Fragaria vesca CA strawberry, wild strawberry, wood strawberry
16 Some species we might see Rubus ursinus CA/Pacific blackberry
17 A cool species we probably won t see Rubus parviflorus thimbleberry Rosaceae
18 An important species we probably won t see Rubus armeniacus Himalayan or Armenian blackberry INVASIVE
19
20
21 Rosaceae (rose family) Rosa Malus fusca Prunus ilicifolia Rubus fruticosus Fragaria sp.
22 Cucurbitaceae (gourd family) Overview World: 100 genera, 700 spp. CA: 6 genera, 12 spp. Marah macrocarpus Cucurbita pepo (various cultivars)
23 Cucurbitaceae (gourd family) Habit Herbaceous vines (trailing or climbing) with tendrils* Annual or perennial
24 Cucurbitaceae (gourd family) Representative genera Cucurbita (pumpkins, gourds)* Marah (Indian cucumbers, manroots)* Marah macrocarpus Cucurbita pepo (various cultivars)
25 Cucurbitaceae (gourd family) Leaves Simple* Alternate* Palmately veined* Hairs (stems as well)* (if these features appear on the exam, they will do so in aggregate!!)
26 Flowers Unisexual, plants gen monoecious* Radial Hypanthium Calyx gen 5 Corolla gen 5, partly fused* Androecium Stamens 5, fused to form large central lobe/stalk * Gynoecium Pistil 1, from 3 fused carpels Ovary large, inferior (or, ± inferior)* Styles 1-3, stigmas gen lobed Ca 5 Co 5 A 0 G 3 Ca 5 Co 5 A 5 G 0
27 Cucurbitaceae (gourd family) Fruit Pepo (a berry with a thick rind)* Marah macrocarpa Cucurbita pepo (various cultivars)
28 Some species we might see Cucurbita palmata coyote gourd/melon
29 Some species we might see Cucurbita foetidissima Calabazilla, coyote gourd
30 Some species we might see Marah macrocarpa Big-fruited manroot
31 tuberous root
32 Cucurbitaceae (gourd family) Marah macrocarpa Cucurbita pepo (various cultivars)
33 Malvaceae (mallow family) Overview World: ±266 genera, ± 4,025 spp. CA: ±18 genera, ± 80 spp. Habit Annual or perennial Hibiscus sp. Fremontodendron californicum Malva parviflora
34 Malvaceae (mallow family) Representative genera Malva (mallow)* Fremontodendron (flannelbush)* Hibiscus (hibiscus)* Malacothamnus (bush mallow) Sidalcea (checker bloom) Hibiscus sp. Fremontodendron californicum Malva parviflora
35 Malvaceae (mallow family) Leaves Gen cauline, simple (compound) Gen palmately lobed & veined* Gen toothed Stellate trichomes (on stems also)* Malva parviflora Fremontodendron californicum Malacothamnus fasciculatus
36 Flowers Gen bisexual radial Calyx gen 5, fused at base Corolla gen 5 (0), free but fused at base to filament tube Androecium Stamens 5 many, filaments fused into a tube around the style* Staminodes gen 0 (5) Gynoecium Pistil 1, 5-many fused carpels Ovary superior Malva parviflora Hibiscus sp.
37 Fruit Capsule, (berry) Or, 5-many part disk or wedge-shaped segments (i.e., mericarps)* hence cheeseweed for Malva parviflora (and some others) Fremontodendron californicum Malva parviflora
38 Some species we might see Fremontodendron californicum CA flannelbush
39 Some species we might see Malacothamnus fasciculatus chaparral mallow, bush mallow
40 Some species we might see Malva parviflora cheeseweed introduced
41 Some species we might see Sidalcea malviflora checkerbloom
42 Rhamnaceae (buckthorn family) Overview World: genera, 950 spp. CA: 7 genera, ± 70 spp. (many subsp.) Habit Trees and shrubs Often thorny
43 Rhamnaceae (buckthorn family) Representative genera Ceanothus (CA lilac, deer brush)*, two sub-genera: Euceanothus/Ceanothus (thin, deciduous stipules) Cerastes (thick corky stipules) Rhamnus (buckthorn)* Frangula (coffee berry)* Frangula californica Ceanothus spinosus Rhamnus ilicifolia
44 Rhamnaceae (buckthorn family) Leaves Simple, gen alternate Pinnate veined, or 1-5 ribbed Stipules gen present (important for ID of subgenera of Ceanothus)*
45 Flowers Gen bisexual Radial Hypanthium present small ; 1 or INFL=cyme, panicle, umbel Floral disk* (variable or 0) Calyx Sepals 4 or 5 Corolla Petals 0, 4, or 5, gen clawed, and alternate sepals* Androecium Stamens = # of sepals, alternate sepals, in TJM2 = opposite petals* Gynoecium Pistil 1, often from 2-3 fused carpels Ovary superior or ± inferior* Style 1; stigma entire or 2-3 lobed C. cuneatus C. oliganthus
46 Flowers Gen bisexual Radial Hypanthium present small ; 1 or INFL=cyme, panicle, umbel Floral disk* (variable or 0) Calyx Sepals 4 or 5 Corolla Petals 0, 4, or 5, gen clawed, and Androecium alternate sepals* Stamens = # of sepals, alternate sepals*; in TJM2 = opposite petals Gynoecium Pistil 1, often from 2-3 fused carpels Ovary superior or ± inferior* Style 1; stigma entire or 2-3 lobed Ca 4, 5 C. cuneatus Co 0, 4, 5 (clawed, alternate sepals) A 4,5 G or G 2,3 (alternate sepals)
47 Fruit Capsule, drupe Ceanothus megacarpus Frangula (Rhamnus) californica
48 Some species we might see Ceanothus megacarpus Bigpod ceanothus
49 Some species we might see Ceanothus cuneatus wedgeleaf ceanothus
50 Some species we might see Ceanothus spinosus greenbark ceanothus
51 Some species we might see Ceanothus oliganthus hairy ceanothus
52 Some species we might see Frangula (Rhamnus) californica CA coffee berry, coffee berry
53 Some species we might see Rhamnus crocea spiny redberry
54 Some species we might see Rhamnus ilicifolia hollyleaf redberry
55 Some species we might see Prunus ilicifolia ssp. ilicifolia hollyleaf cherry
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