Difference between revisions of "Omalotheca Cassini in F. Cuvier (Q2686) "

taxon name

Omalotheca

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taxon authority

Cassini

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taxon rank

genus

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taxon status

accepted

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VasCan taxon numeric id

1476

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parent taxon

Gnaphalieae

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taxon habit

herb

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distribution

Mostly Eurasian

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three species reaching North America in native distribution (Omalotheca sylvatica perhaps not native)

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three species reaching North America in native distribution (see below)

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taxon description fragment

Stems usually 1, erect (branched from bases or distally, woolly-tomentose to sericeous).

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d0_s1

sessile;

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d0_s4

blades mostly narrowly lanceolate to oblanceolate, bases cuneate, margins entire, faces bicolor or concolor, abaxial white to gray, thinly tomentose, adaxial white to grayish and sericeous to thinly woolly or greenish and glabrate.

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d0_s5

Heads disciform, in spiciform or subcapitate arrays.

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d0_s6

Involucres campanulate to turbinate, 5–6 mm.

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d0_s7

Phyllaries in 2–3 series, stramineous to brownish (sometimes mottled; hyaline, stereomes not glandular), unequal, chartaceous toward apices.

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d0_s8

Receptacles flat to concave, smooth, epaleate.

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d0_s9

Peripheral (pistillate) florets 35–70+ (more numerous than bisexual);

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d0_s10

corollas purplish or whitish.

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d0_s11

Inner (bisexual) florets 3–4;

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d0_s12

corollas purplish or whitish, distally purplish or reddish.

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d0_s13

Cypselae obovoid to cylindric or fusiform, sometimes slightly compressed, faces strigillose (hairs not myxogenic, lengths 6–12 times diams.) and papillate (carpopodia forming minute stipes);

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d0_s14

pappi falling readily, of 15–25 distinct (falling separately) or basally connate (falling together), barbellate bristles in 1 series.

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d0_s15

x = 14.

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d0_s16

morphology statement

stem

1

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d0_s1

stem

orientation

erect

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d0_s1

position

basal

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d0_s4

position

cauline

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d0_s4

arrangement

alternate

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d0_s4

sessile

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d0_s4

leaf blade

mostly narrowly lanceolate

oblanceolate

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d0_s5

inflorescence phyllaries base

cuneate

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d0_s5

inflorescence palea margin

entire

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d0_s5

bicolor

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d0_s5

concolor

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d0_s5

white

gray

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d0_s5

tomentose

thinly

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d0_s5

white

grayish

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d0_s5

sericeous

thinly woolly

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d0_s5

greenish

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d0_s5

glabrate

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d0_s5

inflorescence involucre

campanulate

turbinate

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d0_s7

inflorescence involucre

some measurement

5

6

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d0_s7

inflorescence phyllary

stramineous

brownish

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d0_s8

inflorescence phyllary

size

unequal

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d0_s8

inflorescence phyllary

texture

chartaceous

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d0_s8

purplish

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d0_s11

whitish

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d0_s11

purplish

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d0_s13

whitish

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d0_s13

purplish

distally

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d0_s13

reddish

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d0_s13

purplish

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d0_s13

whitish

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d0_s13

purplish

distally

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d0_s13

reddish

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d0_s13

strigillose

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d0_s14

relief

papillate

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d0_s14

15

25

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d0_s15

fusion

distinct

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d0_s15

fusion

connate

basally

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d0_s15

barbellate

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d0_s15

fruit pappus

life cycle

falling

readily

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d0_s16

chromosome

14

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d0_s16

general structure head

disciform

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d0_s6

general structure bundle array

spiciform

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d0_s6

general structure bundle array

subcapitate

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d0_s6

general structure receptacle

flat

concave

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d0_s9

general structure receptacle

relief

smooth

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d0_s9

general structure receptacle

epaleate

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d0_s9

inflorescence flower disc floret

35

70

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d0_s10

inflorescence flower disc floret

3

4

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d0_s12

fruit cypsela

obovoid

cylindric or fusiform

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d0_s14

fruit cypsela

compressed

sometimes slightly

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