no 



STANDARDIZED PLANT NAMES 



Dahlia, continued 



Cultural Types of Dahlia 



Statement Prepared by 



Dr. W. E. Safford 



Single Dahlias are those which have 

 but one circle of ray-flowers surround- 

 ing the disk. In the primitive type there 

 are only eight rays; but this number has 

 been increased and the rays may be long 

 or short, slender and pointed or broad 

 and rounded, acuminate or notched, or 

 with such wide spaces between the tips 

 of the rays as to suggest a star, recurved 

 or incurved. Single Cactus Dahhas 

 usually have the rays incurved, with the 

 margins folded backward. 



Duplex Dahlias are those which have a 

 double row of rays surrounding the disk. 

 The name is apphed to various forms in 

 which the rays may be either flat and 

 broad or narrow and folded either in- 

 ward or outward. 



Show Dahlias are those which have a 

 globose or hemispherical head of quilled 

 florets. 



Pompon Dahlias may be regarded as a 

 small form of the Show type; they are 

 especially desirable for cut flowers, and 

 are sometimes called Bouquet Dahlias. 



Decorative Dahlias are those possess- 

 ing broad, flat, and nearly straight 

 florets, arranged somewhat irregularly; 

 the flower heads are not spherical in 

 shape like those of the Show Dahhas, 

 but are inchnedto be flat or massive 

 and are always full to the center. 



Dwarf Dahhas include various kinds of 

 low Dahlias suitable for bedding 

 purposes. 



Anemone-flowered Dahlias have a 

 single circle of ray flowers and the disk 

 flowers are developed into elongated 

 tubes. 



Cactus Dahlias diff'er from other types 

 chiefly in having the margins of their 

 florets folded or even quilled backward. 

 Their ancestry may be traced back to 

 Dahlia juarezi. 



HybridCactusDahlias are intermediate 

 between Cactus Dahlias and Decorative 

 or Show Dahlias. Some of their florets 

 are usually folded backward. Dahlia 

 juarezi, the ancestor of all the Cactus 

 Dahhas, would now be classed with the 

 Cactus Hybrids. 



Peony-flowered Dahlias are so named 

 from their resemblance to semi-double 

 peonies. Many are hybrids between 

 Cactus Dahlias and other forms. Some 

 are artistically irregular with long stems. 



Collarette Dahlias have a single series 

 of ray flowers, with the stamens de- 

 veloped into petal-like processes which 

 appear to form a frill or collar around 

 the disk, usually of a different color 

 from that of the rays. 



Dahlia, continued 



Explanation of Abbreviations 

 Classification 



The classification of the varieties is 

 indicated after each of the following 

 abbreviations: 



An. Fl. Anemone-flowered Dahha. 

 Cac. Cactus Dahha. 

 Col. Collarette Dahha. 

 Dec. Decorative Dahha. 

 Dup. Duplex Dahlia. 

 Dw. Dwarf Dahha. 

 HC. Hybrid Cactus Dahlia. 

 HPFl. Hybrid Peony-flowered Dahlia. 

 Pom. Pompon Dahlia. 

 PFl. Peony-flowered Dahlia. 

 Sin. Single Dahha. 

 Sh. Show Dahha. 



Originators 

 Alex. 



Ans. 



Aust. 



Babe. 

 Bost. 



Broom. 

 Bru. 



Burg. 

 Burns 

 Burp. 



Burr. 



Can. 



Cay. 

 Cham. 



Charm. 



Cheal 

 Chi. 



Crass 



Dav. 

 Deeg. 



Dool. 



Engelh. 



Est. 



Fell. 

 Fen. 



or Introducers 



J. K. Alexander, East Bridge- 

 water, Mass. 



Carl Ansorge, Klein-Flottbek, 

 Holstein, Germany. 



William J. Austin, Dorchester, 

 England. 



D. W. Babcock, Berhn, Md. 

 Bessie Boston Dahlia Farm, 



San Mateo, Calif. 

 J. J. Broomall, Eagle Rock, Cal. 

 Viaud-Bruant, Poitiers, Vienne, 



France. 



E. B. Burgle, Fruitvale, Cahf. 



F. C. Burns, San Rafael, Cahf. 

 W. A. Burpee & Co., Phila- 

 delphia, Pa. 



J. Burrell & Co., Cambridge, 



England. 

 H. Cannell & Son, Swanley, 



England. 

 Cayeux & Leclerc, Paris, France. 

 Mrs. Chamberlain, Portland, 



Ore. 

 A. Charmet, Rue Des Dahlais, 



10 Monplaisir, Lyon, Rhone, 



France. 

 J. Cheal & Sons, Crawley, 



Sussex, England. 

 John Lewis Childs, Floral Park, 



L. L, N. Y. 

 Eduard Crass, Mariendorf, 



Germany. 

 A. W. Davidson, Ansonia, Conn. 

 Max Deegen, Kostritz, Thurin- 



gen, Germany. 

 L. S. Doolittle, Del Monte, 



Calif. 

 Kurt Engelhardt, Dresden, 



Germany. 

 Mrs. W. E. Estes, 1458 47th 



Ave., San Francisco, Cahf. 

 F. W. Fellowes, England. 

 Fenton's Dahha Farm, 771 



Buena Vista, San Francisco, 



Cahf. 



BOLD-face=approved scientific names. 77'AZic=synonyms or unapproved names. 



