Friday, October 19, 2012

Lab 9 - Ranunculales, Malpighiales, Cucurbitales, and Saxifragales


ORDER: Ranunculales
Family: Ranunculaceae (buttercup family)
Key features: frequently dissected or compound leaves, one two many free carpels, numerous carpels

Aquilegia canadensis

  Herbarium folium Thalictrum, in the vase Delphinium

Delphinium sp.

Clematis catsbyana

Family: Malpighiaceae
 Key characters: T-shaped hairs, sepals with 2 abaxial oil glands, petals clawed

Note drupes and observe the gland associated with the sepals
 Malpighia glabra

  Galphimia gracilis

Malpighia coccigera

 Fruits of Mascagnia macroptera

 Banisteriopsis caapi (Jungle juice)
Family: Clusiaceae
Key features: latex canals (colored sap)
 Clusia rosea

Garcinia tinctora

 Mammea americana
Family: Hypericaceae
 Hypericum hypericoides
Family: Euphorbiaceae
Key features: milky sap, flowers unisexual, 3 styles, bifid, cyathia in Euphorbia

Note glands at the base of the leaf blade and 3 lobed fruits with three large seeds
 Sapium sebiferum

 Aleurites fordii

 Cnidoscolus chayamansa

 Jatropha gossypifolia

 Jatropha integerrima

 Manihot esculenta (manihot, tapioca, yuca)

 Manihot grahmii

 Codiaeum varigatum

 Croton glandulosus var. glandulosus
 Acalypha wilkesiana

Ricinus comunis

Euphorbia pfersdorfii

 Euphorbia millii
 Euphorbia hirta

 Euphorbia cyathophora
Family: Salicaceae
Key character: Salicoid teeth on leaves and seeds often arilate or with basal tuft of hairs
Poppulus deltoides

 Salix caroliniana

  Dovyalis hebecarpa

 Oncoba spinosa

Xylosma congestum


Family: Cucurbitaceae
Key features: soft-woody vines, spiraly coiled and often branch tendrils, petals fused, stamens fused, mimic the sitma, fruit a berry with rind often leathery (pepo)
 Cucurbita pepo

 Cucurbita maxima

 Cucumis melo

 Xerocycios sp.

 Gerrardanthus macrorhizus

 Psiguria tambensis

 Luffa cylindrica (Loofah)

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