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Utah Flora BOT2100

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Utah Flora BOT2100 Lecture 7 Angiosperm Families III Including: Fabaceae Apiaceae Onagraceae Malvaceae Utah Flora BOT2100 Fabales 4 families 754 genera 20,055 species

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Utah Flora BOT2100

Lecture 7

Angiosperm Families III

Including:

Fabaceae

Apiaceae

Onagraceae

Malvaceae

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Utah Flora BOT2100

Fabales

4 families754 genera 20,055 species

Major Families

Fabaceae – garden peas, lupines, clovers

Polygalaceae– milkworts

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Utah Flora BOT2100

Fabales

  • Fabaceae Leguminosae
  • Worldwide730 genera 19,400 species
  • Utah(Native and Introduced)56 genera 216 species
  • annuals, perennial herbs, shrubs, or trees
  • leaves alternate, pinnately or palmately compound, rarely simple
  • inflorescence in racemes
  • flowers superior, perfect, irregular
  • calyx fused, 5 lobed, often 2-lipped
  • corolla of 5 petals, 2 fused, 3 seperate (banner, wings, and keel)
  • stamens 5 or 10, filaments fused in a tube
  • fruit a legume or loment (pods formed from 2 carpels)
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Utah Flora BOT2100

Fabales

Fabaceae Leguminosae

  • Lathyrus
  • Worldwide150 species
  • Utah(Native and Introduced) 7 species
  • annual or perennial herbs with tendrils
  • leaves even-pinnate
    • pinnately compound with a even number of leaflets
    • terminal leaflet replaced by a tendril
  • flowers white, pink, or lavender
  • style bearded down one side
  • sister genus, Vicia, is identical except style is bearded at apex only
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Utah Flora BOT2100

Fabales

Fabaceae Leguminosae

  • Lathyrus brachycalyx
  • sagebrush valley & montane species
  • plants perennial herbs with tendrils
  • corolla purplish, 15-30 mm long
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Utah Flora BOT2100

Fabales

Fabaceae Leguminosae

  • Melilotus
  • Worldwide 20 species
  • Utah(Introduced)3 species
  • annual herbs, herbage non-glandular
  • leaflets 3, pinnately compound, the terminal leaflet petioliate
    • leaflets with toothed margins
  • inflorescence racemose, several times longer than wide
  • pods straight, ovoid (egg-shaped)
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Utah Flora BOT2100

Fabales

Fabaceae Leguminosae

  • Melilotus officinalis
  • weedy exotic species
  • corolla yellow, 3-7 mm long
  • pods straight,
  • ovoid (egg-shaped)
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Utah Flora BOT2100

Fabales

Fabaceae Leguminosae

  • Trifolium
  • Worldwide 240 species
  • Utah(Native and Introduced) 18 species
  • annual or perennial herbs
  • leaves palmately or pinnately compound;
    • leaflets 3, with toothed margins
  • flowers in dense, capitate racemes,
    • sometimes involucrate (with bracts)
  • corollas white, pink, or lavender
  • legumes small, generally 1 to 3 seeded
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Utah Flora BOT2100

Fabales

Fabaceae Leguminosae

  • Trifolium longipes
  • montane species
  • plants perennial herbs
  • heads without a toothed involucre
  • calyx villosulous
  • corolla purplish, 10-12 mm long
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Utah Flora BOT2100

Myrtales

9 families380 genera 11,027 species

Major Families

Onagraceae – evening primrose, suncups

Lythraceae – loosetrife (noxious weed)

Myrtaceae– Eucalyptus, Melaleuca

(leaves of trees used as herbal remedies)

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Utah Flora BOT2100

Myrtales

  • Onagraceae
  • Worldwide22 genera 656 species
  • Utah(Native and Introduced)10 genera 63 species
  • annuals or perennial herbs, rarely shrubs
  • leaves alternate or opposite, simple or pinnately compound
  • inflorescence solitary or in racemes, often axillary
  • flowers inferior, perfect, regular
  • calyx of 4 sepals, separate; corolla of 4 petals, separate
  • stamens 4 or 8
  • fruit a capsule
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Utah Flora BOT2100

Myrtales

Onagraceae

  • Oenothera
  • Worldwide 145 species
  • Utah(Native) 18 species
  • annual, biennial, or perennial herbs
  • leaves alternate, simple or compound, often clustered at base of stem
  • flowers solitary
  • corollas white, yellow, pink, or lavender, often opening in evening
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Utah Flora BOT2100

Myrtales

Onagraceae

  • Oenothera caespitosa
  • desert to sagebrush valley species
  • plants acaulescent (without stems)
  • corolla white, 2.5-6 cm long
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Utah Flora BOT2100

Myrtales

Onagraceae

  • Epilobium
  • Worldwide 165 species
  • Utah(Native) 14 species
  • annual, biennial, or perennial herbs
  • leaves opposite (sometimes upper ones alternate), simple
  • flowers solitary & axillary or in terminal racemes
  • fruit a elongate capsule; seeds with a tuft of hairs
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Utah Flora BOT2100

Myrtales

Onagraceae

  • Epilobium angustifolium
  • montane species
  • plants erect, rhizomatous
  • corolla 10-30 mm long
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Utah Flora BOT2100

Apiales

7 families494 genera 5489 species

Major Families

Apiaceae – carrots, parsley

Araliaceae – ginseng

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Utah Flora BOT2100

Apiales

  • Apiaceae Umbelliferae
  • Worldwide434 genera 3780 species
  • Utah(Native and Introduced)27 genera 72 species
  • annual or perennial herbs
  • leaves alternate, simple or pinnately compound
  • inflorescence in compound umbels
  • flowers inferior, perfect, regular
  • calyx of 5 sepals, separate; corolla of 5 petals, separate
  • stamens 5
  • fruit a schizocarp (dry fruit which splits into 2 to many, 1 seeded segments
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Utah Flora BOT2100

Apiales

Apiaceae Umbelliferae

  • Angelica
  • Worldwide 110 species
  • Utah(Native) 4 species
  • perennial herbs, caulescent
  • leaves alternate, often with a broad sheath, pinnately compound
  • inflorescence a compound umbel
  • fruit a schizocarp, the dorsal and lateral ribs with small wings
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Utah Flora BOT2100

Apiales

Apiaceae Umbelliferae

  • Angelica kingii
  • montane species
  • leaflets lanceolate, toothed or lobed
  • umbels 7-20 rayed
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Utah Flora BOT2100

Malvales

10 families338 genera 6005 species

Major Families

Malvaceae – Hibiscus, hops, hollyhocks

This is the only family of this group found in Utah, as a native or introduced

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Utah Flora BOT2100

Malvales

  • Malvaceae
  • Worldwide243 genera 4,500 species
  • Utah(Native and Introduced)12 genera 25 species
  • annuals, perennial herbs, or shrubs; herbage with stellate hairs
  • leaves alternate, simple or palmately lobed
  • inflorescence in solitary or racemes or cymes
  • flowers superior, perfect, regular
  • calyx of 5 sepals, separate; corolla of 5 petals, separate
  • stamens numerous, filaments fused into a sheath around the style
  • fruit a schizocarp (dry fruit which splits into many, 1 seeded segments
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Utah Flora BOT2100

Malvales

Malvaceae

  • Sphaeralcea
  • Worldwide 30 species
  • Utah(Native) ~17 species
  • perennial herbs, herbage with often dense stellate hairs
  • leaves alternate, palmately lobed to nearly compound
  • inflorescence a cyme, often with leafy bracts
    • racemose cymes – with one flower per node
    • thyrsoid cymes – with two or more flowers per node
  • fruit a schizocarp
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Utah Flora BOT2100

Malvales

Malvaceae

  • Sphaeralcea coccinea
  • most common species of this genus in Utah
  • rhizomatous perennial
  • leaves deeply 3-5 lobed
  • inflorescence a thrysoid cyme
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Utah Flora BOT2100

Quiz 3

Part A

  • On the sheet of paper provided, please answer the following questions (spelling counts):
  • To which family does this specimen belong?
  • ?
  • ?
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Utah Flora BOT2100

Quiz 3

Part B

  • On a new sheet, please determine this specimen
  • to genus (spelling counts).
  • This specimen belongs to family:
  • 2. If time remains, for extra credit, determine this specimen to species
  • You may use your Utah Flora, your notes, or any other handouts provided in class for Part B
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Utah Flora BOT2100

Assignment

  • Draw and label species provided in lab
  • Make sure to label those morphological features that helped
  • you identify the sample (the characters in the key)
  • Identify & label all samples to family and genus
  • For Practice: use A Utah Flora to identify & label all samples to
  • species (other than any we determined in class together)
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