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Taxonomy Test 2 definitions

Terms

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Outgrowth of Tissue at the top of the leaf sheath
Ligule
One of two small papery bracts at the base of the grass spikelet
Glume
Lowest of the two bracts subtending a grass floret
Lemma
Upper bract of the two that typically subtend a floret
Palea
Scale-like reduced perianth parts in the flower of species of the poaceae
Lodicule
Study of relative growth (parts on an individual growth)
Allometry
Developmental biology term having to do with time
Heterochrony
Water storage organs; stems usually swollen at base
Pseudobulbs
Twists 180 degrees during development
Resupinate
Lip; often used to refer to a particular petal that has differentiated from all others; especially in orchids
Labellum
When pollen is clumped into distinct masses
Pollinia
Structure formed by the fusion of the androecium and the gynoecium in the orchidaceae
Column
Papery sheath that is formed in the Polygonaceae; sheath made from stipules at the node
Ocrea
Red purple pigment
Anthocyanin
Penetrating root of a parasitic plant that invades vascular tissue of host plant
Haustorium
Cleistogomous
Non-opening, self pollinating
Specialized inflorescence of some euphorbiaceae where a single carpellate flower and multiple staminate flowers are clustered together and imitate a single flower
Cyanthium
Orchids are highly derived from this
Asparageles
Folded in a fan-like manner
Plicate
Modified branch; thorn
Euphorb
Basal group of cactus (fruit is a berry)
Pereskia
Glume
Small papery bract at base of grass spikelet
Lemma
Lowest of two bracts subtending a grass floret
Palea
Upper bract of the two subtending a floret
Lodicule
Scale-like reduced perianth parts in flowers of poaceae
Pseudocopulation
In Orchids, release of chemicals similar to insect pheromones to attract pollinators
Pollinia
Pollen clumped into distinct masses, in Orchids
Spathe
A hood like bract found in Araceae
Teosinte
Ancient relative to modern day corn. Much smaller than todays version
Succulent
Wet, moist and thick. Cactus
Spikelet
Collective term for grass unit
Oryza
Seed is rice
Triticum
Genus of wheat
Genus of wheat
Triticum
Genus of rice
Oryza
Exerted Stamen
Stamens exerted beyond the petals like in Orchids
Stamens that go beyond the petals like in Orchids
Exerted Stamen
Monocot Question: Vascular Bundles of the stem
Tubers are used for nutrient storage
Monocot Question: Major leaf veins
Large and have parallel veination
Monocot Question: Leaf bases
Undifferentiated leaf bases; clasping
Monocot Question: Floral part numbers
Usually found in multiple of 3's
Monocot Question: Embryo
Single cotelydon
Zea
Corn; grasses; only in North America

Deck Info

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