- Which type of plant does the Peace lily belong to?
A: Shrub
B: Fern
C: Herbaceous evergreen
D: Tree
Correct Answer: C
Explanation: Peace lily is a genus of herbaceous evergreen plants with dark green foliage. - What family do Peace lilies belong to?
A: Rosaceae
B: Araceae
C: Liliaceae
D: Asteraceae
Correct Answer: B
Explanation: Peace lilies are part of the Araceae family. - How many species of Peace lily are there approximately?
A: 20
B: 47
C: 75
D: 100
Correct Answer: B
Explanation: There are about 47 species of Peace lily in the family Araceae. - Where are Peace lilies natively found?
A: Europe and Africa
B: Tropical regions of the Americas and southeastern Asia
C: Australia and New Zealand
D: Arctic and Antarctic regions
Correct Answer: B
Explanation: Peace lilies are native to tropical regions of the Americas and southeastern Asia. - What is a unique feature of Peace lily flowers?
A: They bloom only once a year
B: They do not require light to bloom
C: They can produce flowers in various colors including white, yellowish, or greenish
D: They always face north
Correct Answer: C
Explanation: The flowers of Peace lilies can be white, yellowish, or greenish. - What is the approximate length range of Peace lily leaves?
A: 2-10 cm
B: 5-15 cm
C: 12-65 cm
D: 70-150 cm
Correct Answer: C
Explanation: Peace lily leaves can range from 12 to 65 cm long. - What structure surrounds the Peace lily flower?
A: A bract
B: A petal
C: A spathe
D: A stem
Correct Answer: C
Explanation: The flower structure of a Peace lily is surrounded by a spathe. - What is the spadix in the context of Peace lilies?
A: A type of leaf
B: A fruit
C: A flower structure containing male and female parts
D: A root system
Correct Answer: C
Explanation: The spadix is a short fleshy structure containing the male and female flower parts. - How tall can Peace lily plants grow?
A: 0.3 to 1.83 meters (1 to 6 feet)
B: 2 to 5 meters
C: 10 to 20 centimeters
D: None of the above
Correct Answer: A
Explanation: Peace lily plants can reach a height of 0.3 to 1.83 meters, or 1 to 6 feet. - What kind of habitat do Peace lilies prefer?
A: Sunny, dry plains
B: Rainy mountains
C: Shady, moist, or wet areas along rivers and streams
D: Coastal sand dunes
Correct Answer: C
Explanation: Peace lilies grow in shady, moist, or wet areas along rivers and streams in tropical humid forests. - Where are some Peace lily species specifically found?
A: Greenland
B: Urban areas worldwide
C: Cocos Island and the Philippines
D: Saharan desert
Correct Answer: C
Explanation: Some Peace lily species are found on Cocos Island and in the Philippines. - What type of environments can Peace lilies withstand when planted outdoors?
A: Cold and dry
B: Hot and humid
C: Very arid
D: Freezing temperatures
Correct Answer: B
Explanation: Peace lilies are able to thrive in hot and humid outdoor conditions. - How often do all flowers on a given spadix mature and produce pollen?
A: Once a year
B: Twice a month
C: Every day
D: All at the same time, for up to four days
Correct Answer: D
Explanation: All Peace lily flowers on a given spadix mature at the same time and produce pollen for up to four days. - What kind of fruits do pollinated Peace lily flowers produce?
A: Berries
B: Peapods
C: Ovoid fruits
D: Nuts
Correct Answer: C
Explanation: Pollinated Peace lily flowers produce ovoid fruits. - How long does it take for Peace lily fruits to mature?
A: 1-2 months
B: 3-4 weeks
C: 6-8 days
D: 4-6 months
Correct Answer: D
Explanation: Peace lily fruits take about 4 to 6 months to mature. - What is the scientific name for the Peace lily tribe?
A: Hominidae
B: Orchidaceae
C: Spathiphylleae
D: Fabaceae
Correct Answer: C
Explanation: The Peace lily tribe is scientifically named Spathiphylleae. - What is the scientific name of a Peace lily cultivar that won the Royal Horticultural Society’s Award of Garden Merit?
A: Peace lily ‘Clevelandii’
B: Peace lily ‘Mauna Loa’
C: Peace lily ‘Blandum’
D: Peace lily ‘Kalbreyeri’
Correct Answer: B
Explanation: The cultivar ‘Mauna Loa’ has won the Royal Horticultural Society’s Award of Garden Merit. - What substance is used commercially to induce flowering in Peace lilies?
A: Gibberellic acid
B: Calcium oxalate
C: Nitrogen
D: Potash
Correct Answer: A
Explanation: Gibberellic acid is used commercially to induce flowering in Peace lilies. - How are Peace lilies typically propagated commercially?
A: By seeds
B: By cuttings
C: By plant tissue culture
D: By grafting
Correct Answer: C
Explanation: Peace lilies are typically propagated by plant tissue culture. - What climate conditions do Peace lilies grow best in?
A: Freezing temperatures
B: 70 to 90°F (21 to 32°C)
C: Below 10°C (50°F)
D: Extremely arid conditions
Correct Answer: B
Explanation: Peace lilies grow best between temperatures of 70 to 90°F (21 to 32°C). - How often should the soil be watered for optimal Peace lily care?
A: Once a day
B: Every hour
C: When the soil is dry
D: Once every two months
Correct Answer: C
Explanation: Peace lilies need watering when the soil is dry. - Are Peace lilies true lilies?
A: Yes
B: No
Correct Answer: B
Explanation: Peace lilies are not true lilies and are from the family Araceae, not Liliaceae. - What effect does the Peace lily have when ingested by humans?
A: Highly toxic
B: Mildly toxic
C: Harmless
D: Energizing
Correct Answer: B
Explanation: Peace lilies are only mildly toxic to humans and other animals when ingested. - Which part of the Peace lily causes skin irritation and a burning sensation in the mouth?
A: Calcium oxalate crystals
B: Organic acids
C: Sugars
D: Proteins
Correct Answer: A
Explanation: The Peace lily contains calcium oxalate crystals which can cause irritation and burning sensations. - What discovery related to Peace lily diseases was first made in Tokyo between 1989-1994?
A: Grey mould disease
B: Leaf wilt
C: Stem rust
D: Root rot
Correct Answer: A
Explanation: The grey mould disease affecting Peace lilies was first noticed in Tokyo between 1989-1994. - What genus did Heinrich Wilhelm Schott originally describe the Peace lily in 1832?
A: Massowia
B: Hydnostachyon
C: Peace lily
D: Anthurium
Correct Answer: C
Explanation: Heinrich Wilhelm Schott described the genus Peace lily in 1832 in his book “Meletemata Botanica”. - What are the other genera names equivalent to Peace lily, given by Frederik Liebmann and Karl Koch?
A: Anthurium and Dracontium
B: Hydnostachyon and Massowia
C: Urospatha and Spathiphyllopsis
D: Amomophyllum and Leucochlamys
Correct Answer: B
Explanation: Frederik Liebmann named it Hydnostachyon and Karl Koch named it Massowia. - What was the basis for Heinrich Wilhelm Schott’s redefinition of Peace lily in 1853?
A: Its medicinal properties
B: A new habitat discovery
C: Better microscopic analysis of structures
D: Moving S. sagittaefolium into the new genus Urospatha
Correct Answer: D
Explanation: Schott redefined Peace lily in 1853 by moving S. sagittaefolium into the new genus Urospatha. - How many species did George S. Bunting’s PhD thesis encompass in his revision of Peace lily in 1960?
A: 22
B: 36
C: 45
D: 57
Correct Answer: B
Explanation: George S. Bunting’s revision encompassed a total of 36 species. - What fruit is pickled in vinegar from the Peace lily used as food?
A: The young spadix of S. matudae
B: The mature leaves
C: The roots
D: The stem
Correct Answer: A
Explanation: The young spadix of S. matudae is pickled in vinegar. - Which type of leaf rot disease affecting Peace lilies was noticed in Argentina in 2008?
A: Bacterial leaf rot disease
B: Root rot disease
C: Powdery mildew
D: Leaf spot
Correct Answer: A
Explanation: Bacterial leaf rot disease affecting Peace lilies was first noticed in Argentina in 2008. - What type of diseases first identified during in vitro culture threaten Peace lilies?
A: Leaf eating caterpillars
B: Myrothecium disease
C: Rust fungus
D: Worm infestation
Correct Answer: B
Explanation: Myrothecium disease was a significant problem during in vitro culture of Peace lilies. - Which parts of the Peace lily can have grey molded disease?
A: Flowers
B: Leaves
C: Roots
D: All of the above
Correct Answer: D
Explanation: Grey mold disease can affect various parts of the Peace lily. - What is the main cultural use of Peace lilies?
A: Food crop
B: Medicinal plant
C: Ornamental houseplant
D: Building material
Correct Answer: C
Explanation: Peace lilies are primarily used as ornamental houseplants. - What is a symptom of leaf damage due to a disease?
A: Water-soaked areas starting from the leaf tip
B: Bright green spotting
C: Early fall coloration
D: Bent stems
Correct Answer: A
Explanation: Ailments of the Peace lily manifest as water-soaked areas starting from the leaf tip. - Which genera in the family Araceae have similar looking plants to Peace lilies?
A: Orchis
B: Anthurium
C: Rosa
D: Helianthus
Correct Answer: B
Explanation: Anthurium is a similar-looking genus in the same family Araceae. - What kind of leaves do Peace lily plants have?
A: Simple and oval
B: Compound and lobed
C: Elliptical or lanceolate
D: Needle-shaped
Correct Answer: C
Explanation: Peace lily leaves are elliptical or lanceolate. - What supports the Peace lily leaves on stems?
A: Shoots (petioles)
B: Tendrils
C: Bulbs
D: Rhizomes
Correct Answer: A
Explanation: Peace lily leaves are supported on shoots (petioles). - What genus did Schott move S. sagittaefolium into in his 1853 redefinition of Peace lily?
A: Anthurium
B: Urospatha
C: Spathiphyllopsis
D: Dracontium
Correct Answer: B
Explanation: Schott moved S. sagittaefolium into the genus Urospatha in his 1853 redefinition. - What is the effect of calcium oxalate crystals found in Peace lilies?
A: Energizing
B: Skin irritation and burning sensation
C: Cooling
D: Anti-bacterial
Correct Answer: B
Explanation: Calcium oxalate crystals in Peace lilies can cause skin irritation and burning sensation. - How long do pollen-producing Peace lily flowers generally last?
A: Up to one day
B: Up to four days
C: Up to a week
D: Up to a month
Correct Answer: B
Explanation: Peace lily flowers produce pollen for up to four days. - What common environmental condition can Peace lilies handle well outdoors?
A: Harsh sunlight
B: Arid conditions
C: Hot and humid weather
D: Freezing temperatures
Correct Answer: C
Explanation: Peace lilies can handle hot and humid weather well when planted outdoors. - What popular cultivar of Peace lily is awarded by the Royal Horticultural Society?
A: ‘Clevelandii’
B: ‘Mauna Loa’
C: ‘Atrovirens’
D: ‘Monachinoi’
Correct Answer: B
Explanation: The ‘Mauna Loa’ cultivar has received the Royal Horticultural Society’s Award of Garden Merit. - Is the Peace lily more tolerant to light or shade?
A: Light
B: Extreme light
C: Moderate light
D: Shade
Correct Answer: D
Explanation: Peace lilies live best in shade and need little sunlight to thrive. - What chemical does Peace lily contain that can irritate the mouth and cause difficulty swallowing?
A: Arsenic
B: Calcium oxalate
C: Mercury
D: Lead
Correct Answer: B
Explanation: Calcium oxalate in Peace lilies can cause mouth irritation and difficulty swallowing. - From which parts do Peace lily leaves emerge?
A: Flowers
B: Underground creeping stem
C: Aerial roots
D: Unicellular trichomes
Correct Answer: B
Explanation: Peace lily leaves emerge directly from a low-lying or underground creeping stem. - When was the grey mold disease in Peace lilies first noticed?
A: Between 1979-1983
B: Between 1989-1994
C: Between 2000-2005
D: Between 2010-2015
Correct Answer: B
Explanation: The grey mold disease affecting Peace lilies was first noticed in Tokyo Metropolis, Japan between 1989-1994. - What is the importance of the Myrothecium disease in Peace lilies?
A: Causes root rot
B: Significant issue during in vitro culture
C: Affects only flowers
D: Has no impact on plant health
Correct Answer: B
Explanation: Myrothecium disease was an important issue during the in vitro culture of Peace lilies. - What classification comes directly before the genus for Peace lilies?
A: Family
B: Tribe
C: Clade
D: Subfamily
Correct Answer: B
Explanation: The tribe Spathiphylleae comes directly before the genus for Peace lilies. - How resistant are Peace lilies to drought conditions?
A: Very resistant
B: Moderately resistant
C: Poorly resistant
D: Immune
Correct Answer: C
Explanation: Peace lilies are not very resistant to drought conditions as they thrive in shady, moist, or wet areas. - What was Heinrich Wilhelm Schott’s contribution to the taxonomy of Peace lilies?
A: Describing the genus in 1832 and redefining it in 1853
B: Introducing new varieties in 1990
C: First recognizing Peace lilies as medicinal plants
D: Discriminating between edible and non-edible types
Correct Answer: A
Explanation: Heinrich Wilhelm Schott described the genus Peace lily in 1832 and redefined it in 1853. - How are Peace lilies most commonly cultivated for retail?
A: By division
B: Through grafting
C: Via plant tissue culture
D: Using hydroponics
Correct Answer: C
Explanation: Peace lilies are commonly propagated through plant tissue culture for commercial purposes. - What is the botanical structure that supports the flowers on Peace lilies?
A: Petiole
B: Peduncle
C: Spathiphylle
D: Canopy
Correct Answer: B
Explanation: The peduncle supports the flowers on Peace lilies. - What element of the Peace lily did S. matudae use as food?
A: Stem
B: Young spadix
C: Mature leaves
D: Flowers
Correct Answer: B
Explanation: The young spadix of S. matudae is pickled in vinegar or cooked with eggs. - Which disease in Peace lilies shows water-soaked areas from the leaf tip?
A: Leaf scorch
B: Leaf spot
C: Bacterial leaf rot disease
D: Sunburn
Correct Answer: C
Explanation: Bacterial leaf rot disease manifests as water-soaked areas starting from the leaf tip in Peace lilies. - Which part of Peace lily flowers contain both male and female reproductive parts?
A: Spathe
B: Petal
C: Spadix
D: Root
Correct Answer: C
Explanation: The spadix of a Peace lily contains both the male and female reproductive parts. - What genus does Schott claim as more appropriately Peace lily?
A: Urospatha
B: Massowia
C: Spathiphyllopsis
D: Amomophyllum
Correct Answer: B
Explanation: Schott claimed Massowia to be more appropriately classified as Peace lily. - What consists of the flowering structure in Peace lilies?
A: A single white or greenish-white spathe partially surrounding the spadix
B: Multiple small florets
C: Clusters of berries
D: Pollen cones
Correct Answer: A
Explanation: The flowering structure in Peace lilies consists of a single white or greenish-white spathe partially surrounding the spadix. - What destroys many of Peace lily type specimens in Vienna and Berlin?
A: Fire in Vienna
B: World war in Berlin
C: Both A and B
D: Pest infestations
Correct Answer: C
Explanation: Collections of Peace lily type specimens were destroyed by fire in Vienna and by war in Berlin. - What study did George S. Bunting perform related to Peace lilies?
A: Field research in tropical forests
B: Lab-based genetic modifications
C: PhD thesis revising the genus Peace lily
D: Ecological analysis in urban areas
Correct Answer: C
Explanation: George S. Bunting revised the Peace lily genus as part of his PhD thesis work.