Difference between revisions of "Crataegus formosa Sargent (Q4308) "

taxon name

Crataegus formosa

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taxon authority

Sargent

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taxon rank

species

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taxon status

accepted

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common name

aubépine jolie (French)

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waxy-fruit hawthorn (English)

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beautiful hawthorn (English)

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VasCan taxon numeric id

8680

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distribution

CA-ON

establishment of distribution

occurrence status

present

native

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publication

Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.

CA-ON

Ont.

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US-NY

N.Y.

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US-OH

Ohio

1 reference

US-WI

Wis.

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Crataegus ser. Pruinosae Sargent ex Rehder

parent taxon

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taxon habit

shrub

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phenology

Flowering May; fruiting Sep–Oct.

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taxon habitat

brush

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elevation

100–300 m

measurement range from

100 meter

measurement range to

300 meter

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special status

C

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E

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taxon description fragment

Shrubs or trees, 50 dm.

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d0_s0

thorns on twigs recurved, 2-years old dark-brown, shiny, older charcoal black, then gray, ± slender, 2.5–5 cm.

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d0_s2

Leaves: petiole length 30–36% blade, eglandular or slightly glandular;

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d0_s3

blade deltate (mainly on shoots with terminal inflorescence) to broadly rhombic-elliptic, 4–7 cm, subcoriaceous, base cuneate to nearly truncate, lobes 3 or 4 per side (larger leaves), sinuses moderately deep, lobe apex acute, margins serrate, veins 5 or 6 per side, apex acute, surfaces glabrous.

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d0_s4

Inflorescences 4–7-flowered;

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d0_s5

branches glabrous;

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d0_s6

bracteoles caducous, absent or several, margins glandular.

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d0_s7

Flowers 22–30 mm diam.;

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d0_s8

sepals triangular, 6 mm, margins subentire, abaxially glabrous;

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d0_s9

stamens 20, anthers white, 0.6–0.8 mm;

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d0_s10

styles 4 or 5.

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d0_s11

Pomes red, often ± angular, 10 mm diam., ± pruinose;

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d0_s12

sepals on collar, spreading;

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d0_s13

pyrenes 4 or 5.

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d0_s14

morphology statement

50

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d0_s0

growth form

shrub

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d0_s0

50

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d0_s0

growth form

tree

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d0_s0

leaf petiole

length

eglandular

30-36%

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d0_s3

leaf petiole

length

glandular

slightly

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d0_s3

leaf blade

deltate

broadly rhombic-elliptic

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d0_s4

leaf blade

4

7

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d0_s4

leaf blade

texture

subcoriaceous

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d0_s4

inflorescence phyllaries base

cuneate

nearly truncate

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d0_s4

inflorescence flower corolla lobe

3

1 reference

d0_s4

inflorescence flower corolla lobe

4

1 reference

d0_s4

inflorescence flower gynoecium pistil style apex

acute

1 reference

d0_s4

architecture

serrate

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d0_s4

inflorescence flower gynoecium pistil style apex

acute

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d0_s4

inflorescence

architecture

4-7-flowered

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d0_s5

inflorescence branch

pubescence

glabrous

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d0_s6

inflorescence bracteole

duration

caducous

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d0_s7

inflorescence bracteole

presence

absent

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d0_s7

inflorescence bracteole

several

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d0_s7

architecture

function

pubescence

glandular

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d0_s7

inflorescence flower

diameter

22

30

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d0_s8

inflorescence flower sepal

triangular

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d0_s9

inflorescence flower sepal

6

1 reference

d0_s9

subentire

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d0_s9

pubescence

glabrous

abaxially

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d0_s9

inflorescence flower stamen

20

1 reference

d0_s10

inflorescence flower anther

white

1 reference

d0_s10

inflorescence flower anther

0.6

0.8

1 reference

d0_s10

inflorescence flower gynoecium pistil style

4

1 reference

d0_s11

inflorescence flower gynoecium pistil style

5

1 reference

d0_s11

inflorescence flower sepal

orientation

spreading

1 reference

d0_s13

fruit pyrene

4

1 reference

d0_s14

fruit pyrene

5

1 reference

d0_s14

life cycle

old

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d0_s2

dark-brown

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d0_s2

reflectance

shiny

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d0_s2

life cycle

older

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d0_s2

charcoal black

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d0_s2

gray

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d0_s2

size

slender

more or less

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d0_s2

2.5

5

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d0_s2

stem twig

orientation

recurved

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d0_s2

inflorescence flower petal venation vein

5

1 reference

d0_s4

inflorescence flower petal venation vein

6

1 reference

d0_s4

red

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d0_s12

arrangement

angular

often more or less

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d0_s12

diameter

10

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d0_s12

coating

pruinose

more or less

1 reference