fungus causing a serious disease in tobacco plants characterized by bluish-grey mildew on undersides of leaves
blushing mushroom
Noun
yellowish edible agaric that usually turns red when touched
bread mold
Noun
a mold of the genus Rhizopus
black felt cup
Noun
a common name for a variety of Sarcosomataceae
basidium
Noun
a small club-shaped structure typically bearing four basidiospores at the ends of minute projections
basidiomycete
Noun
any of various fungi of the subdivision Basidiomycota
basidiomycetous fungi
Noun
any of various fungi of the subdivision Basidiomycota
basidiolichen
Noun
a lichen in which the fungus component is a basidiomycete
blood cup
Noun
a scarlet European fungus with cup-shaped ascocarp
bell morel
Noun
a morel whose fertile portion resembles a bell and is attached to the stipe only at the top
black morel
Noun
a morel whose pitted fertile body is attached to the stalk with little free skirt around it
bottom rot fungus
Noun
fungus causing bottom rot in lettuce
baker's yeast
Noun
used as a leaven in baking and brewing
brewer's yeast
Noun
used as a leaven in baking and brewing
brewer's yeast
Noun
yeast used in fermenting beer
blewits
Noun
edible agaric that is pale lilac when young
brain mushroom
Noun
a poisonous gyromitra
beefsteak morel
Noun
a poisonous gyromitra
brown root rot fungus
Noun
fungus causing brown root rot in plants of the pea and potato and cucumber families
blister rust
Noun
fungus causing white pine blister rust and having a complex life cycle requiring a plant of genus Ribes as alternate host
blister rust
Noun
any of several diseases of pines caused by rust fungi of the genus Cronartium and marked by destructive invasion of bark and sapwood and producing blisters externally
beefsteak fungus
Noun
a popular edible fungus with a cap the color of liver or raw meat
bolete
Noun
any fungus of the family Boletaceae
boil smut
Noun
a common smut attacking Indian corn causing greyish white swellings that rupture to expose a black spore mass
bird's-nest fungus
Noun
any of various fungi of the family Nidulariaceae having a cup-shaped body containing several egg-shaped structure enclosing the spores
bracket fungus
Noun
a woody fungus that forms shelflike sporophores on tree trunks and wood structures
bedder
Noun
an ornamental plant suitable for planting in a flowerbed
bedding plant
Noun
an ornamental plant suitable for planting in a flowerbed
beanstalk
Noun
stem of a bean plant
bean tree
Noun
any of several trees having seedpods as fruits
bonsai
Noun
a dwarfed ornamental tree or shrub grown in a tray or shallow pot
bramble
Noun
any of various rough thorny shrubs or vines
bulbous plant
Noun
plant growing from a bulb
bulbil
Noun
small bulb or bulb-shaped growth arising from the leaf axil or in the place of flowers
bulblet
Noun
small bulb or bulb-shaped growth arising from the leaf axil or in the place of flowers
bog plant
Noun
a semiaquatic plant that grows in soft wet land
bacca
Noun
an indehiscent fruit derived from a single ovary having one or many seeds within a fleshy wall or pericarp: e.g. grape
blastomycete
Noun
any of various yeastlike budding fungi of the genus Blastomyces
bast
Noun
(botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed
bast
Noun
strong woody fibers obtained especially from the phloem of from various plants
bast fiber
Noun
strong woody fibers obtained especially from the phloem of from various plants
branchlet
Noun
a small branch or division of a branch (especially a terminal division)
basket fern
Noun
giant epiphytic or lithophytic fern
basket fern
Noun
tropical American fern cultivated for its finely divided greyish-green foliage
bough
Noun
any of the larger branches of a tree
bole
Noun
the main stem of a tree
bole
Noun
a soft oily clay used as a pigment (especially a reddish brown pigment)
bract
Noun
a modified leaf or leaflike part just below and protecting an inflorescence