- 1. Which researchers challenged the division of Myrtaceae into Leptospermoideae and Myrtoideae in 1984?
A) Wilson et al.
B) Melipona and Tetragonula
C) Cryptoplini and Psiloxylaceae
D) Johnson and Briggs
- 2. What kind of fruits were found to have evolved twice from capsular fruits?
A) Dry drupes
B) Dehiscent fruits
C) Legume fruits
D) Baccate fruits
- 3. Which study is currently used by many workers as a starting point for analyses of the Myrtaceae family?
A) Wilson et al. (2001)
B) Johnson and Briggs (1984)
C) Plants of the World Online (2025)
D) Wilson (2011)
- 4. Which genera were historically separated as the families Heteropyxidaceae and Psiloxylaceae?
A) Melaleuca and Eucalyptus
B) Corymbia and Syzygium
C) Heteropyxis and Psiloxylon
D) Tristania and Myrtus
- 5. What is the belief regarding the evolutionary age of the genera Heteropyxis and Psiloxylon?
A) They are the most recently evolved species
B) They are the earliest arising and surviving lineages
C) They are extinct lineages
D) They are hybrids of other Myrtaceae
- 6. How many tribes are recognized in the most recent classification of Myrtaceae?
A) 130
B) 2
C) 14
D) 17
- 7. What are the two subfamilies in the most recent Myrtaceae classification?
A) Eucalypteae and Myrteae
B) Heteropyxideae and Psiloxyleae
C) Myrtoideae and Psiloxyloideae
D) Leptospermoideae and Myrtoideae
- 8. According to Wilson (2011), which tribe belongs to the subfamily Psiloxyloideae?
A) Leptospermeae
B) Heteropyxideae
C) Myrteae
D) Eucalypteae
- 9. How many genera does Plants of the World Online accept as of February 2025?
A) 17
B) 130
C) 14
D) 200
- 10. Which bee species is noted for gathering pollen from Myrtaceae?
A) Tetragonula carbonaria
B) Cryptoplini weevils
C) Melipona bicolor
D) Tetragonula hockingsi
- 11. What substance do Tetragonula hockingsi and T. carbonaria collect from Corymbia torelliana?
A) Nectar
B) Petals
C) Pollen
D) Resin
- 12. What is the term for the process where bees accidentally disperse seeds stuck to their corbiculae?
A) Pollination
B) Mellitochory
C) Parasitism
D) Herbivory
- 13. Where do the weevils in the tribe Cryptoplini typically develop?
A) In the roots of the plant
B) In the resin of the tree
C) In flower buds, fruit buds, or galls
D) In the nectar of the flowers
- 14. Why is the accumulation of Corymbia torelliana seeds a nuisance for some bee keepers?
A) They take up space in the hives
B) They kill the bees
C) They destroy the honey quality
D) They attract other insects
- 15. To which order does the family Myrtaceae belong?
A) Lamiales
B) Fabales
C) Rosales
D) Myrtales
- 16. What type of plants are members of the Myrtaceae family?
A) Dicotyledonous
B) Monocotyledonous
C) Gymnosperms
D) Bryophytes
- 17. Which of these is a member of the Myrtaceae family?
A) Maple
B) Rose
C) Clove
D) Oak
- 18. What substance is contained in all Myrtaceae species?
A) Resin
B) Essential oils
C) Caffeine
D) Latex
- 19. What is the leaf margin characteristic of most Myrtaceae?
A) Entire
B) Serrated
C) Lobed
D) Dentate
- 20. What is the typical base number of flower petals in Myrtaceae?
A) Five
B) Three
C) Eight
D) Six
- 21. What part of the flower is usually very conspicuous and numerous in Myrtaceae?
A) Stamens
B) Bracts
C) Sepals
D) Pistils
- 22. When do scientists hypothesize the Myrtaceae family arose?
A) 60 to 56 million years ago
B) 100 to 90 million years ago
C) 20 to 10 million years ago
D) 5 million years ago
- 23. Pollen fossils of Myrtaceae have been traced to which ancient supercontinent?
A) Pangaea
B) Gondwana
C) Rodinia
D) Laurasia
- 24. What process is generally responsible for the differentiation of Myrtaceae taxa?
A) Hybridization
B) Pollination
C) Mutation
D) Vicariance
- 25. How many species are estimated to be in the Myrtaceae family according to a 2016 paper?
A) About 10,000
B) About 1,000
C) About 5,950
D) About 25,000
- 26. What type of fruit do Eucalyptus and Melaleuca have?
A) Capsular
B) Berry
C) Drupe
D) Fleshy
- 27. Which genus is the tallest flowering plant in the world?
A) Callistemon
B) Melaleuca
C) Syzygium
D) Eucalyptus regnans
- 28. Which genus native to Australasia contains species that are mangroves?
A) Eugenia
B) Myrcia
C) Calyptranthes
D) Osbornia
- 29. What type of fruit is characteristic of the subfamily Myrtoideae?
A) Fleshy
B) Dry and dehiscent
C) Capsular
D) Samara
- 30. Where is the center of diversity for the subfamily Leptospermoideae?
A) Australia
B) Neotropics
C) North America
D) Europe
- 31. Which of these is a common name for the genus Callistemon?
A) Bottlebrushes
B) Paperbarks
C) Guava
D) Myrtle
- 32. What is a notable member of the Myrtaceae family mentioned in the text?
A) Acca (feijoa)
B) Pine
C) Sunflower
D) Lavender
- 33. What is the typical growth habit of all Myrtaceae species?
A) Herbaceous
B) Woody
C) Succulent
D) Aquatic
|