Zygnematophyceae
E264522
Zygnematophyceae is a class of freshwater green algae, including filamentous and unicellular forms like Spirogyra, that are among the closest algal relatives of land plants.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Zygnematophyceae canonical | 8 |
| Zygnematales | 4 |
| Desmidiales | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2415775 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Zygnematophyceae Context triple: [Embryophyta, sisterGroupTo, Zygnematophyceae]
-
A.
Marchantiophyta
Marchantiophyta is a division of non-vascular plants commonly known as liverworts, characterized by simple, often thalloid bodies that typically inhabit moist, shaded environments.
-
B.
Trenholmensiales
Trenholmensiales is a relatively small and specialized order of fungi within the class Sordariomycetes, characterized by its distinct microscopic features and phylogenetic placement among ascomycetous fungi.
-
C.
Bryophyta
Bryophyta is a subkingdom of non-vascular, spore-producing plants that includes mosses, liverworts, and hornworts, typically found in moist environments.
-
D.
Torpedosporales
Torpedosporales is an order of fungi within the class Sordariomycetes, comprising mainly marine and aquatic species known for their specialized spore morphology.
-
E.
Chaetosphaeriales
Chaetosphaeriales is an order of filamentous ascomycete fungi known for their saprobic lifestyle, decomposing plant material in terrestrial and aquatic habitats.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Zygnematophyceae Target entity description: Zygnematophyceae is a class of freshwater green algae, including filamentous and unicellular forms like Spirogyra, that are among the closest algal relatives of land plants.
-
A.
Marchantiophyta
Marchantiophyta is a division of non-vascular plants commonly known as liverworts, characterized by simple, often thalloid bodies that typically inhabit moist, shaded environments.
-
B.
Trenholmensiales
Trenholmensiales is a relatively small and specialized order of fungi within the class Sordariomycetes, characterized by its distinct microscopic features and phylogenetic placement among ascomycetous fungi.
-
C.
Bryophyta
Bryophyta is a subkingdom of non-vascular, spore-producing plants that includes mosses, liverworts, and hornworts, typically found in moist environments.
-
D.
Torpedosporales
Torpedosporales is an order of fungi within the class Sordariomycetes, comprising mainly marine and aquatic species known for their specialized spore morphology.
-
E.
Chaetosphaeriales
Chaetosphaeriales is an order of filamentous ascomycete fungi known for their saprobic lifestyle, decomposing plant material in terrestrial and aquatic habitats.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
algal class
ⓘ
charophyte algae ⓘ green algae ⓘ |
| adaptation |
tolerance to desiccation in some species
ⓘ
tolerance to high light in some species ⓘ |
| cellularity |
filamentous
ⓘ
unicellular ⓘ |
| cellWallComponent | cellulose ⓘ |
| chloroplastMorphology |
plate-like chloroplasts in some taxa
ⓘ
spiral chloroplasts in some taxa ⓘ |
| closestRelatives |
Embryophyta
ⓘ
land plants ⓘ |
| commonName | zygnematophycean algae ⓘ |
| containsOrder |
Desmidiales
ⓘ
linked to:
Zygnematophyceae
Zygnematales ⓘ
linked to:
Zygnematophyceae
|
| distribution | worldwide in suitable freshwater habitats ⓘ |
| division | Charophyta ⓘ |
| ecologicalRole |
oxygen production
ⓘ
primary producers in freshwater ecosystems ⓘ |
| flagellaPresence |
non-flagellated gametes
ⓘ
non-flagellated spores ⓘ |
| genomicFeature | shares stress-response genes with land plants ⓘ |
| habitat |
freshwater
ⓘ
temporary ponds ⓘ wet soils ⓘ |
| includesGenus |
Closterium
ⓘ
Cosmarium ⓘ Mougeotia ⓘ Spirogyra ⓘ Zygnema ⓘ |
| kingdom | Plantae ⓘ |
| lifeCycle | haplontic life cycle ⓘ |
| morphology |
unbranched filaments
ⓘ
unicellular desmids ⓘ |
| photosyntheticPigment |
chlorophyll a
ⓘ
chlorophyll b ⓘ |
| phylogeneticPosition | sister group to land plants ⓘ |
| phylum | Streptophyta ⓘ |
| reproductionType |
asexual reproduction
ⓘ
sexual reproduction ⓘ |
| reproductiveStructure | zygospore ⓘ |
| researchUse |
model for cell wall evolution
ⓘ
model for land plant evolution ⓘ |
| sexualReproductionMode | conjugation ⓘ |
| storageProduct | starch ⓘ |
| supergroup | Archaeplastida ⓘ |
| taxonRank | class ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Zygnematophyceae Description of subject: Zygnematophyceae is a class of freshwater green algae, including filamentous and unicellular forms like Spirogyra, that are among the closest algal relatives of land plants.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Zygnematophyceae
linked to: Zygnematophyceae
linked to: Zygnematophyceae