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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

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Utah Flora BOT2100

Lecture 7

Angiosperm Families III

Including:

Fabaceae

Apiaceae

Onagraceae

Malvaceae


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Fabales

4 families754 genera 20,055 species

Major Families

Fabaceae – garden peas, lupines, clovers

Polygalaceae– milkworts


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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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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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Fabales

Fabaceae Leguminosae

  • Lathyrus brachycalyx

  • sagebrush valley & montane species

  • plants perennial herbs with tendrils

  • corolla purplish, 15-30 mm long


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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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Fabales

Fabaceae Leguminosae

  • Melilotus officinalis

  • weedy exotic species

  • corolla yellow, 3-7 mm long

  • pods straight,

  • ovoid (egg-shaped)


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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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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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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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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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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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Myrtales

Onagraceae

  • Oenothera caespitosa

  • desert to sagebrush valley species

  • plants acaulescent (without stems)

  • corolla white, 2.5-6 cm long


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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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Myrtales

Onagraceae

  • Epilobium angustifolium

  • montane species

  • plants erect, rhizomatous

  • corolla 10-30 mm long


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Apiales

7 families494 genera 5489 species

Major Families

Apiaceae – carrots, parsley

Araliaceae – ginseng


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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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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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Apiales

Apiaceae Umbelliferae

  • Angelica kingii

  • montane species

  • leaflets lanceolate, toothed or lobed

  • umbels 7-20 rayed


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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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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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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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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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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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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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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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