48 BULLETIN 797, U. S. DEPARTMENT OF AGRICULTURE. 



Broken tulips. — Tulips in which the coloring mattei' is une(ju:illy distrilmted in 

 both flowers and foliage. 



Bulb. — A flesliy underground bud with thick succulent scales. It is an entire 

 plant condensed into a gigantic bud. 



Bulb house. — The storehouse in which bulbs are kept and handled betv/een 

 the time of digging and planting. 



Bybloemen. — Tulips of various shades of purple to violet in the breeder and 

 broken sections. The ground color of the petal (th(^ color of the tissue be- 

 tween the epidermal layers) is white. 



Centimeter. — One 1/lOOth of a meter, or about two-fifths of an inch. 



Cleaning'.— Separation of bulbs from the clumps in which they grew and the 

 remo^•al of dirt and chaff from them. 



Corona. — The crown cup or tube of the narcissus flower. 



Culling'. — Removal of undesirable bulbs. 



Curing. — The treatment of bulbs in storage. 



Cutting-. — Removing tulip and hyacinth flowers from the beds. 



DafEodils. — The largest section of the genus Narcissus. It includes in common 

 parlance all but the rush-leaved forms, or jonquils. 



Darwins. — ^For the most part a robust May-flowering group of tulips wi<:h 

 flowers of a rectangular form at the base. 



Double Earlies. — Double-flowered early tulip varieties. 



Dropper. — A stemlike growth frequent in many classes of bulbs. It grows 

 downward some distance from the parent bulb and gives rise at its ex- 

 tremity to a new deeper set bulb. 



Dutch bulbs. — Tulips, narcissi, and hyacinths, besides a score of other bulbs 

 and roots which in the Netherlands are propagated for sale. They are 

 often called Holland bulbs. 



Dutch-Roman. — Hyacinths of the Dutch varieties grown the last j-ear in the 

 south of France. 



Dutch prepared. — Dutch hyacinths dug early and subjected to artificial heat 

 to hasten the development of the flower spike. 



Fire.^An abl "eviated term for the flre disease of tulips caused by the fungus 

 Botrytis parasitica. 



Gray disease. — The mosaic of hyacinths and narcissus. 



Hyacinth. — A low, herbaceous perennial of the lily family, usually with a 

 large spike of bell-shaped flowers terminating a short scape and a coated bTilb 

 with outer coats papery, similar to those of the narcissus or the onion. 



Hyacinth, Roman. — A species distinct from the Dutch hyacinth. It is more 

 graceful than the latter and not adapted to out-of-door culture except in 

 the South. 



Hyacinth, Dutch. — The common hyacinth. 



Incomparabilis. — A group of narcissi having large chalice-cupped coronas. 



Increase. — The propagated stock of bulbs of any. one period. 



Jonquils. — A small group of the genus Narcissus Avith rushlike leaves. The 

 terms narcissus, daffodil, and jonqviil are Used as common names very loosely 

 and with a great deal of confusion. Often people use the name dafEodil to 

 designate all the single-flowered forms except the rush-leaved ones and the 

 Poeticus section. The rush-leaved forms are ca.lled jonquils and the bunch- 

 flowered and Poeticus groups narcissi. 



Leedsil.— A group of narcissi like the Incoiuiiarabilis and Barrii sections, but 

 the flowers are white or only slightly yellowish tinted. 



