By organism › Animals › Trigonidiidae › Trigonidium

Observationobservedoriginal resultbasis n/a

Claim · model-written summary

Trigonidium is included in Maxillaria.

Taxon: TrigonidiumTrigonidiume0
Outcome: included in Maxillariae0

Verbatim

e0
“Cryptocentrum, Cyrtidiorchis, Mormolyca, Pityphyllum, and Trigonidium are here included in Maxillaria.”
✓ located verbatim in the source · abstract, characters 478–580

Title

A reappraisal of Maxillaria (Orchidaceae)

Andre Schuiteman; Mark Chase Phytotaxa 2015. doi:10.11646/phytotaxa.225.1.1

Other claims from this paper (11)

Recommendation An expanded circumscription of Maxillaria is preferred over recognizing numerous segregate genera.
Observation Narrow segregate genera are often difficult to diagnose and increase misidentification risks, especially for genus-only identifications.
Observation Genera of the Maxillaria alliance recognized in Genera orchidacearum are treated as sections of expanded Maxillaria.
Observation Cryptocentrum is included in Maxillaria.
Observation Cyrtidiorchis is included in Maxillaria.
Observation Mormolyca is included in Maxillaria.
Observation Pityphyllum is included in Maxillaria.
Observation Necessary nomenclatural combinations were made.
Method / resource A sectional key and provisional checklist of 634 Maxillaria species arranged by section were provided.
Observation Maxillaria prolifera is the correct name for M. pendens.
Observation Maxillaria humilis is a new combination for M. gracilis.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Genome sizes of the studied Maxillariinae orchids range from 1C = 1.85 to 4.1 pg.

Taxon: Brasiliorchis, Christensonella and TrigonidiumTrigonidiumMaxillaria sect. UrceolataeMaxillaria sect. Repentese0
Outcome: Genome sizese1
Value: 1C = 1.85 to 4.1 pge1

Verbatim

e0
“Here, we study karyotype divergence in the closely related genera Brasiliorchis, Christensonella and Trigonidium belonging to subtribe Maxillariinae of subfamily Epidendroideae (Orchidaceae).”
✓ located verbatim in the source · abstract, characters 0–191

e1
“Genome sizes range from 1C = 1.85 to 4.1 pg”
✓ located verbatim in the source · abstract, characters 781–824

Title

Chromosome studies in Orchidaceae: karyotype divergence in Neotropical genera in subtribe Maxillariinae

Ana Paula Moraes; Ilia J. Leitch; Andrew R. Leitch Botanical Journal of the Linnean Society 2012. doi:10.1111/j.1095-8339.2012.01266.x

Other claims from this paper (4)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The cytogenetic data are consistent with a base chromosome number of 2n = 40 in these orchid genera.

Taxon: Brasiliorchis, Christensonella and TrigonidiumTrigonidiumMaxillaria sect. UrceolataeMaxillaria sect. Repentese0
Outcome: base chromosome numbere4
Value: 2n = 40e4

Verbatim

e0
“Here, we study karyotype divergence in the closely related genera Brasiliorchis, Christensonella and Trigonidium belonging to subtribe Maxillariinae of subfamily Epidendroideae (Orchidaceae).”
✓ located verbatim in the source · abstract, characters 0–191

e4
“Our cytogenetic data are consistent with a base chromosome number of 2n = 40”
✓ located verbatim in the source · abstract, characters 1026–1102

Title

Chromosome studies in Orchidaceae: karyotype divergence in Neotropical genera in subtribe Maxillariinae

Ana Paula Moraes; Ilia J. Leitch; Andrew R. Leitch Botanical Journal of the Linnean Society 2012. doi:10.1111/j.1095-8339.2012.01266.x

Other claims from this paper (4)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The number of 5S and 45S rDNA sites is variable between orchid species.

Taxon: Brasiliorchis, Christensonella and TrigonidiumTrigonidiumMaxillaria sect. UrceolataeMaxillaria sect. Repentese0
Outcome: number of 5S and 45S rDNA sitese5
Qualifier: variable between speciese5

Verbatim

e0
“Here, we study karyotype divergence in the closely related genera Brasiliorchis, Christensonella and Trigonidium belonging to subtribe Maxillariinae of subfamily Epidendroideae (Orchidaceae).”
✓ located verbatim in the source · abstract, characters 0–191

e5
“The number of 5S and 45S rDNA sites is variable between species, consistent with high rates of karyotype divergence”
✓ located verbatim in the source · abstract, characters 1203–1318

Title

Chromosome studies in Orchidaceae: karyotype divergence in Neotropical genera in subtribe Maxillariinae

Ana Paula Moraes; Ilia J. Leitch; Andrew R. Leitch Botanical Journal of the Linnean Society 2012. doi:10.1111/j.1095-8339.2012.01266.x

Other claims from this paper (4)

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

The pseudocopulatory syndrome could have evolved from rewardless ancestors.

Taxon: TrigonidiumTrigonidiumt0 e0
Outcome: pseudocopulatory syndromee0
Qualifier: rewardless (food advertising) ancestorse0

Verbatim

t0
“Trigonidium”
✓ located verbatim in the source · title, characters 29–40

e0
“It is suggested that the pseudocopulatory syndrome in Trigonidium could have evolved from rewardless (food advertising) ancestors.”
✓ located verbatim in the source · abstract, characters 1116–1246

Title

The Pollination Mechanism in Trigonidium obtusum Lindl (Orchidaceae: Maxillariinae): Sexual Mimicry and Trap-flowers

R. B. SINGER Annals of Botany 2002. doi:10.1093/aob/mcf021

Other claims from this paper (8)

Trigonidium 5 claims

5 claims