46 BULLETIN 797, U. S. DEPARTMENT OF AGRTCrLTURE. 



D. Parrotis. Segiiieuts of flowers cut or laciiiiated. 



Sensation, Markgraaf, Lutea Major, Admiral de Constantinople. 



E. Doubles. Blue Flag, Mariage de ma Fille, Orange Brilliant, Yellow Rose. 



SECTION III. 



Species of tulips growing in the state of nature. 

 Clusiana, Greigii, Hageri, Praestans, Sylvestris. 



VARIETIES OF HYACINTHS. 



Hyacinths are listed by color in singles and doubles, the singles 

 being much the more popular. They are offered for sale in several 

 classes, such as miniatures and first and second sizes, which are 

 approximately 18 and 16 cm. bulbs, respectivel}-. Besides these, 

 there is commonly a miniature size (about a 13-cm. bulb) offered for 

 bedding and growing in pots. 



The Dutch-Roman hyacinth is grown the last year in the south of 

 France, w^hei'e the season is earlier and the bulbs are consequently 

 capable of being forced into blossom correspondingly earlier than" 

 Holland-grown stocks of the same varieties. 



The " Dutch prepared " hyacinth is a recent invention, being the 

 ordinary Dutch varieties grown in the Netherlands, but dug early 

 and incubated in artificial heat for the purpose of accelerating the 

 development of the flower buds during the dormant period. These 

 are also capable of being forced into flower earlier. These bulbs are 

 often "soft," due to withering under the artificial treatment, and 

 their appearance is consequently not necessarily an index to their 

 performance. 



These early forcing varieties, especially the "Dutch prepared." 

 often are not successful in this country, mainly owing to improper 

 conditions for rooting. Our atmospheric and soil temperatures in late 

 August and early September are too high to root them properly 

 except in cool cellars. 



The Roman hj^acinth is also offered along with the Dutch varieties. 

 It is early, more graceful than the stiff Dutch varieties, and is 

 grown in southern France. It is adapted only to indoor culture ex- 

 cept in the South, while the Dutch varieties are hard}'. 



The following list, considered from the standpoint of availability 

 and performance, is suggestive. The varieties are those commonly 

 offered for sale and, of course, the leading and most popular sorts. 



Single red and rose. ♦ 



Gertrude, Gigantea, Roi des Beiges, General de Wet, Lady nei-hy. 

 Single white. 



L'Innocence, Mr. PlimsoU, Baroness van Tlmyll, Madam van der Hoop. 

 Single blue. 



Captain Boyton, Grand Maitre, Queen o£ the Blues, Marie, Schotel. 



