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17) Ranunculaceae Caryophyllid Clade 24) Viscaceae Rosid Clade

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Presentation on theme: "17) Ranunculaceae Caryophyllid Clade 24) Viscaceae Rosid Clade"— Presentation transcript:

1 17) Ranunculaceae Caryophyllid Clade 24) Viscaceae Rosid Clade Asterid Clade 18) Papaveraceae Eudicots (Tricolpates)

2 19) Caryophyllaceae 20) Chenopodiaceae (incl. In Amaranthaceae) 21) Cactaceae 22) Droseraceae 23) Polygonaceae Caryophyllids

3 22) Droseraceae Sundew Family Insectivorous, glandular herbs
Often of acid bogs Leaves usually adaxially circinate (appearing to unwind from a spiral on upper side) Leaves either with sticky glands (the leaf slowly rolls up on an entrapped insect) or sensitive hairs that trigger a snap trap closing on an insect Sepals, petals, and stamens usually 5; carpels 3, fused, basal or parietal placentation; fruit a capsule

4 Examples Droseraceae Drosera spp. (sundews)
Dionea muscipula (venus fly trap)

5 Dionaea muscipula

6 Drosera spp.

7 Drosera filiformus – Note the the adaxially circinate leaves

8 Drosera rotundifolia

9 Dionea muscipula – l.s. note basal placentation

10 23) Polygonaceae Knotweed Family
Herbs (or shrub, tree, vine) with swollen nodes Leaves with stipules fused into a tube sheathing the stem (nodal ocrea), or in their absence, flowers in involucrate heads (subtended by bracts) Flowers usually small Tepals 6, petaloid often in two series of 3; or sepals 3 and petals 3; or tepals 5 due to fusion of 2 tepals Fruits and seeds polygonal in shape

11 Examples Polygonaceae
Rheum palmatum (rhubarb) Polygonum Polygonella Rumex (dock, buckwheat) Eriognum (wild buckwheat)

12 Polygonella articulata

13 Polygonella articulata

14 Polygonum bistorta

15 Polygonum aviculare

16 Polygonum cuspidatum

17 Polygonum punctatum

18 Polygonum spp.

19 Rumex patientia

20 Homocladium platycladium

21 24) Viscaceae Christmas Mistletoe Family
Epiphytic parasite of tree branches; roots modified to form haustoria Leaves usually opposite, leathery, veins parallel Flowers small, perfect or imperfect; perianth of 3 or 4 tepals, inserted on a cup-shaped receptacle; stamens as many as perianth segments Ovary inferior, fruit a viscous berry

22 Arceuthobium cyanocarpum – staminate and pistillate plants

23 Phoradendron leucarpon

24 Phoradendron leucarpon – staminate and pistillate flowers


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