Smelowskia calycina 9 claims

Claim · model-written summary

First chromosome counts are reported for Smelowskia calycina ssp. media and two related taxa.

Taxon

Smelowskia calycina ssp. media Drury & RollinsSmelowskia calycinae2

Outcome

First countse2

Qualifier

Thlaspi arcticum Porsild, Oxytropis kobukensis Welshe2

Verbatim

e2

“First counts are reported for Aquilegia brevistyla Hooker, Draba murrayi Mulligan, Erysimum angustatum Rydberg, Smelowskia calycina ssp. media Drury & Rollins, Thlaspi arcticum Porsild, Oxytropis kobukensis Welsh, Cryptantha shackletteana Higgins, Mertensia drummondii (Lehmann) G. Don, and Erigeron muirii Gray”

Claim · model-written summary

The ovule was campylotropous and bitegmic, with both integuments forming the micropyle.

Taxon

Smelowskia calycinaSmelowskia calycinat0

Organ / stage

ovulee0

Outcome

campylotropous ovule was bitegmic, with a micropyle formed by both integumentse0

Verbatim

e0

“The campylotropous ovule was bitegmic, with a micropyle formed by both integuments”

t0

“Smelowskia calycina”

Claim · model-written summary

A single archesporial cell directly became the megasporocyte and produced a linear megaspore tetrad.

Taxon

Smelowskia calycinaSmelowskia calycinat0

Organ / stage

archesporial celle0

Outcome

functioned directly as a megasporocyte, dividing to form a linear tetrad of megasporese0

Verbatim

e0

“The single archesporial cell of a crassinucellar nucellus functioned directly as a megasporocyte, dividing to form a linear tetrad of megaspores”

t0

“Smelowskia calycina”

Claim · model-written summary

The chalazal megaspore formed an 8-nucleate, 7-celled Polygonum-type gametophyte with hooked synergids and polar nuclei that fused before fertilization.

Taxon

Smelowskia calycinaSmelowskia calycinat0

Organ / stage

chalazal megasporee0

Outcome

8-nucleate, 7-celled gametophyte of the Polygonum typee0

Value

8-nucleate, 7-cellede0

Verbatim

e0

“The chalazal megaspore divided to form an 8-nucleate, 7-celled gametophyte of the Polygonum type, having hooked synergids with a well-developed filiform apparatus and polar nuclei that fused prior to fertilization”

t0

“Smelowskia calycina”

Claim · model-written summary

The authors inferred sexual seed production because no development indicative of agamospermy was observed.

Taxon

Smelowskia calycinaSmelowskia calycinat0

Outcome

seed production was assumed to be sexuale0

Not reportedDirection

Verbatim

e0

“In the absence of any anomalous development indicative of agamospermy, seed production was assumed to be sexual”

t0

“Smelowskia calycina”

Claim · model-written summary

The ovule was campylotropous and bitegmic, with both integuments forming the micropyle.

Taxon

Smelowskia calycinaSmelowskia calycinae1

Organ / stage

ovulee0

Outcome

campylotropous ovule was bitegmic, with a micropyle formed by both integumentse0

Verbatim

e0

“The campylotropous ovule was bitegmic, with a micropyle formed by both integuments.”

e1

“Smelowskia calycina”

Claim · model-written summary

The single archesporial cell directly became a megasporocyte and formed a linear tetrad.

Taxon

Smelowskia calycinaSmelowskia calycinae1

Organ / stage

archesporial celle0

Outcome

functioned directly as a megasporocyte, dividing to form a linear tetrad of megasporese0

Verbatim

e0

“The single archesporial cell of a crassinucellar nucellus functioned directly as a megasporocyte, dividing to form a linear tetrad of megaspores.”

e1

“Smelowskia calycina”

Claim · model-written summary

The chalazal megaspore produced a Polygonum type gametophyte with hooked synergids and polar nuclei fused before fertilization.

Taxon

Smelowskia calycinaSmelowskia calycinae1

Organ / stage

chalazal megasporee0

Outcome

8‐nucleate, 7‐celled gametophyte of the Polygonum typee0

Verbatim

e0

“The chalazal megaspore divided to form an 8‐nucleate, 7‐celled gametophyte of the Polygonum type, having hooked synergids with a well‐developed filiform apparatus and polar nuclei that fused prior to fertilization.”

e1

“Smelowskia calycina”

Claim · model-written summary

Because no anomalous development indicating agamospermy was seen, seed production was assumed sexual.

Taxon

Smelowskia calycinaSmelowskia calycinae1

Outcome

seed production was assumed to be sexuale0

Qualifier

absence of any anomalous development indicative of agamospermye0

Verbatim

e0

“In the absence of any anomalous development indicative of agamospermy, seed production was assumed to be sexual.”

e1

“Smelowskia calycina”