### plant part | spore:

Pollen
* Most pollen attracts bees
  - beneficial insects
* Most pollen comes from flowers
  - plants
* Most pollen consists of grain
  - plant pollen
  - tiny grain
* Most pollen contains elements
  - many elements
  - pheromone
  - substances
  - falls on surfaces
  - fertilizes ovules
  - has plants
  - is dispersed by wind
* Most pollen is produced by flowers
  - male flowers
  - orchids
* Most pollen is released from grass in the morning and rises into the air with the heat of the day
  - in the morning and rises skywards with the heat of the day
  - used as food for larvae
  - simply falls on the ground and gets washed into rivers and lakes
  - pollens are edible, they are normally too fiddly to harvest
* Much pollen is released early in the morning, shortly after dawn.
* Some pollen causes allergic reaction
  - fevers
  - hay fevers
* Some pollen comes from sunflowers
  - trees
* Some pollen contains acid
  - amino acid
  - essential amino acid
  - nutrients
  - proteins
  - vitamins
  - develops sporangiums
  - has pores
  - is even toxic to colonies
* Some pollen is produced by flower trees
  - gymnosperms
  - woody gymnosperms
  - spread by the wind or other insects like beetles, flies and bees
  - trapped within the inflorescence and some clings to the surface of the gas bubbles
  - kills larvae
  - mixes with saliva
  - provides food
  - pollens also contain chemical compounds that stimulate collection response in bees
* are male gametophytes enclosed in spore walls
  - often the culprits behind allergic eye irritation, but there are other causes too
  - responsible for allergies outside
* are small, light, and dry so they are easily spread by wind
  - round-shaped male cells of various flowering trees, grasses and plants
  - the male sex cells that grow on the stamens of flowers
* becomes airborne during mowing of lawns, raking of leaves, and other gardening chores.
* byproduct of the reproductive process.
* can travel by wind or insects.
* collective noun that is treated as singular.
* collects in pouches behind the lips of the proventriculus.
* comes from every type of flower on earth
  - the anther
  - trees, grasses, flowers and weeds
  - in a capsule form or as loose granules
  - into contact
* complete food which contains all nutritional factors necessary for plant reproduction.
* consists of tiny grain
  - particles that are carried by the wind from plants and trees
* contains cholesterol and rutin
  - greater concentrations of living enzymes than any other part of the plant
  - male gametophytes which produce and contain sperm cells
* contains the male reproductive cells of the plant
  - sex cells and is necessary to fertilize a seed
  - necessary fertilizers for plant life to reproduce and grow
* counts as particles per cubic metre of air.
* develops from the microspore mother cells.
* does get to fertilize the polar nuclei, which in turn provide food for the embryo
  - provide some minor nutrients and minerals to the birds that consume it
* drifting from adjacent fields can contaminate organic crops.
* drifts from one field to another
  - on the wind and catches on the minute hairs of the silks
* enters flowers.
* enters the air from flowers and salt crystals form when ocean spray dries
  - nose or eyes and lands on mucous membranes of the upper respiratory tract
* fertilizes flowers
  - pistils
* fine powder produced by certain plants when they reproduce
  - flowers, trees, grass and weeds
* germinates to produce a pollen tube.
* has benefits
  - health benefits
* have durable cell walls, made of a substance called sporopollenin.
* includes sections.
* including trees, grasses, weeds and ragweed are some outdoor allergens.
* influences the size, shape, and ripening time of the fruit.
* is again crucial for honey bee brood development, and is made into bee bread.
* is also a remedy for hay fever and allergies
  - mildly diuretic and emenagogue
  - rich in protein
  - autofluorescent under several wavelengths of light
  - blown by the wind
  - brought by the wind direct to the micropyle of the ovules
  - collected by bees and provides the essential protein for brood development
* is contained in masses which are interconnected and called Pollinia
  - inside the anthers
  - developed in the pollen sacs
  - disseminated by insects
* is distributed by the wind
  - primarily by the wind
  - essential for the production of larval food and for brood rearing in honey bee colonies
  - high in protein, carbohydrate, lipids, and vitamins
  - joined with the ovule inside a seed, and genetic material in the two parts combine
  - just a polite term for plant sperm
  - life itself
* is light and is often carried considerable distances by the wind
  - very easily picked up by wind
  - enough to be carried by air currents or insects
* is located in air
  - on the anthers and needs to relocate to the ovary of the flower
* is made into food for the larvae and workers
  - up of tiny particles from trees, grasses, and weeds
  - microscopic in size
  - mixed with water to form a type of bread fed to the growing larvae
  - more concentrated in the air at night
  - most important in feeding the larvae
  - moved from flower to flower by wind or animals
  - part of many flowers
  - probably disseminate by solitary agapostemon or andrinid bees
  - most non-cultivated plants
* is produced by the male organ, called the stamen
  - stamen , the male reproductive organ of the flower
  - inside the anthers, and released when each anther splits open
  - removed from flowers deliberately or incidentally by bumblebees
  - ripe for gathering when the ball of anthers is brownish in color, loose and friable
  - shed and carried by the wind to reach the receptive ovules
* is shed during stigma receptivity after flower opens
  - before flower opens
  - each time that a plant flowers and much of it falls to earth
  - prior to stigma receptivity
* is spread by the wind and by insects to organic crops growing nearby
  - winds and by insects
  - from flower to flower by such natural mechanisms as wind and insects
  - in one of two ways in a country like Britain - on the wind, or by insects
* is the dice-throw of trees in the craps game of survival
  - gametophyte generation of seed plants
  - only natural protein source for honey bees
  - substance found in plants that fertilizes other, like plants
  - transferred mainly by wind and insects
* is very high in vitamin B which increases energy and stamina
  - light and is easily transported by the wind
  - well mixed by atmospheric turbulence, which results in a more or less uniform pollen rain
* made by male gametophytes.
* male sex cell produced in large quantity by most plants.
* natural product and it is responsible for a great deal of the misery
* originate from plants.
* part of life.
* produced by flowers that is typically consumed by bats is high in protein.
* provides colony members with vital amino acids, vitamins, and fats
  - most of their dietary protein
* provides protein and fats necessary for the production of food for young larva
  - stimulates ovary development, preparing the queen to begin egg laying
* relatively large particulate that is readily filtered from the body by the nose.
* relies on the wind to sweep it from one plant to the next.
* remains in the open thecae until contacted by insects or washed out by rain.
* serves purposes
  - same purposes
* shedding from walnut trees can cause allergic reactions in people and horses.
  - and can live for a long time, and under adverse cir- cumstances
* stimulates ovarian function.
* stored in the hive is used as a source of protein in feeding the developing larvae.
* supplies all the nutrients a bee needs for growth and development.
* tends to collect on the exposed body surfaces and especially in the hair.
* triggers an allergic reaction in people suffering from hay fever.
* very fine powder released by trees, weeds and grasses
  - nutritious food
* yellow, powdery dust.