Flashcards
Phylum Pteridophyta
Flashcards do conjunto (37)
- 1Does Pteridophyta form a monophyletic group with seed plants?Yes
- 2Does Pteridophyta form a monophyletic group with seed plants?Yes
- 3What characteristics does Pteridophyta share with seed plants?Megaphylls
Multiflagellate sperm cells - 4Name all of the classes and orders within these classes for PteridophytaPsilotopsida
Ophioglossales
Psilotales
Marattiales
Equisetopsida
Equisetales Equisetaceae
Equisetum
Polyposdiopsida
Filicales
Marsileceae
Salviniaceae - 5What do pteridophyta look like?Ferns
- 6Are there any Pteridophyta that areepiphytic? And what does epiphytic mean?Yes
Grows on other plants and gets moisture and nutrients from them - 7What are the two kinds of sporangia Pteridophyta have? Describe them.Eusporangia:
Not that common
Large
Contains numerous spores
Contains several layered wall
Leptosporangia
Very common
Small
Contains less spores
Single layered wall with annulus - 8I am a Psilotopsida order that only makes one leaf a year. Who am i?Ophioglossales
- 9What is an anulus?Layer of cells with unevenly thick walls. Contraction upon dehydration makes it tear and eject spores
- 10What type of sporangia does Psilotopsida have?Eusporangia
- 11I am commonly called a "whisk fern". Who am I?Psilotales
- 12What are the general in the order Psilotales?Psilotum
Tmesipteris - 13What phylum does Psilotum resemble and why?Rhynophyta
Does not have roots or leaves as they lost them - 14What is a synangia?Fused sporangia
- 15What are the synangia of Psilotum composed of? And those of Tmesipteris?Psilotum: 3 fused sporangia
Tmesipteris: 2 fused sporangia - 16Are the spores of Psilotales homosporous or heterosporous?Homosporous
- 17Where are the gametophytes of Psilotales located?Underground, combined with mycorrhizae
- 18Which orders are the only eusporangiate ferns?Psilotales
Merattiales - 19Does Marattiales have synangia?Yes
- 20What is the taxonomic classification of horsetails?Kingdom: Plantae
Phylum: Pteridophyta
Class: Equisetopsida
Order: Equisetales
Family: Equisetaceae
Genus: Equisetum - 21What kind of leaves does Equisetum have? What kind of character is this?Small, scale-like leaves
Reduced, derived character - 22What is special about the epidermis of the Equisetum?Contains Silica
- 23Label this diagram and say where it is on the plant?Internode
- 24What is present at each node of Equisetum?Whorl of reduced leaves or branches
- 25Are spores of Equisetum homosporous or heterosporous?Homosporous
- 26What is a strobilus?Collection of sporangia
- 27What are the characteristics of the Equisetum gametophyte?Green and free living
Bisexual
Multiflagellated sperm - 28What is the point of having archegonia and antheridia developing at different times on the same plant?Prevents cross-fertilization
- 29What kind of sporangia do Polypodiopsida have?Leptosporangia
- 30Where do most Filicales live?Temperate regions
- 31What is circinate vernation?Coiled leaves
- 32What is sori?Sporangia in clusters
- 33Where do leptosporangia occur on Filicales?On the underside of fronds or on margins
- 34What is an indusium?Structure that covers sorus starting in the placenta
- 35What is a false indusium?Leaf margin folded over sorus
- 36Is the gametophyte of Filicales dependent or independent?Independent
- 37Which are the only living heterosporus ferns?Marsileceae
Salviniaceae
Informações
- Descrição
- Flashcards for Pteridophyta
- Criado por
- Usuário eliminado · dez 2016
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- 9 dez 2016
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- Criado por Shareef Akbari · 8 dez 2016
- Copiado por Shareef Akbari · 8 dez 2016
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