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Plant Tax Flower Terms
plant indentification and descriptive terms
13
Biology
Undergraduate 4
02/17/2013

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Term
spine
Definition

modified leaf or stipule. 

appears where a leaf would or where a stipule would (below petiole node) in pairs. 

Term
thorn
Definition
mordified branch; where (and in place of) apical bud would be (above petiole)
Term
prickle
Definition
modified hair from epidermal tissue; located randomly.
Term
receptacle
Definition
thickened part of a stem from which the 4 whorls grow. stalk of flower meets top of flower.
Term
pistil
Definition
# of countable carpels & number of fruits. A syncarpous gynoecium has a single pistil and makes 1 fruit.
Term
Floral formula ordering
Definition
symmetry, sepals (calyx), petals (corolla), stamens (androecium), carpels (gynoecium)
Term

carpel whorl: 

 

4

Definition
4 carpels with an inferior ovary
Term

carpel whorl: 

 

 

Definition
Term
strigose
Definition
straight sharp stiff appressed hairs
Term
tomentose
Definition

short, matted, or tangled wooly hairs

 

Term
sympetalous
Definition
fused petals
Term
epipetalous
Definition
attached to the petals
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