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Rudbeckia (after the two Professors Rudbeck, father and son).  
 
Rudbeckia (after the two Professors Rudbeck, father and son).  
   
Compositae. Cone-Flower. Very attractive summer-blooming perennials or  
 
Compositae. Cone-Flower. Very attractive summer-blooming perennials or  
   
biennials, usually with yellow flowers.
 
biennials, usually with yellow flowers.
    
Leaves usually alternate, the blades undivided or in some species much  
 
Leaves usually alternate, the blades undivided or in some species much  
   
cut, as in the common Golden Glow: fls. both tubular and ray-like, the  
 
cut, as in the common Golden Glow: fls. both tubular and ray-like, the  
   
former usually purplish, the latter always yellow; involucre  
 
former usually purplish, the latter always yellow; involucre  
   
hemispheric, its bracts imbricated in 2-4 series; receptacle conic or  
 
hemispheric, its bracts imbricated in 2-4 series; receptacle conic or  
   
very rarely convex, with chaffy concave scales subtending the  
 
very rarely convex, with chaffy concave scales subtending the  
   
disk-fls.; disk-fls. perfect, fertile, their corollas 5-lobed: achenes  
 
disk-fls.; disk-fls. perfect, fertile, their corollas 5-lobed: achenes  
   
4-angled, obtuse or truncate at the apex; pappus none or of 2-4 short  
 
4-angled, obtuse or truncate at the apex; pappus none or of 2-4 short  
   
teeth.—There are about 31 species, not counting Echi- nacea, all of N.  
 
teeth.—There are about 31 species, not counting Echi- nacea, all of N.  
   
Amer. Of these scarcely a dozen are of horticultural importance. Under  
 
Amer. Of these scarcely a dozen are of horticultural importance. Under  
   
Rudbeckia are often included in nursery catalogues certain plants here  
 
Rudbeckia are often included in nursery catalogues certain plants here  
   
referred to Echinacea and Lepachys. These three genera form an  
 
referred to Echinacea and Lepachys. These three genera form an  
   
interesting floricultural group. Rudbeckia and Lepachys are typically  
 
interesting floricultural group. Rudbeckia and Lepachys are typically  
   
yellow-fld. genera, while Echinacea is predominately rose-purple-fld.  
 
yellow-fld. genera, while Echinacea is predominately rose-purple-fld.  
   
The chaff of the receptacle is usually persistent in Rudbeckia and  
 
The chaff of the receptacle is usually persistent in Rudbeckia and  
   
deciduous in Lepachys. Among the hardy herbaceous species, there are  
 
deciduous in Lepachys. Among the hardy herbaceous species, there are  
   
several with striking habit and distinct foliage. There is a wide range  
 
several with striking habit and distinct foliage. There is a wide range  
   
of color in the rays of wild plants and many new races are yet to be  
 
of color in the rays of wild plants and many new races are yet to be  
   
perpetuated. Some of these with variations in the shape, color, length,  
 
perpetuated. Some of these with variations in the shape, color, length,  
   
color of disk-fls., and so on may serve as the basis of many fine  
 
color of disk-fls., and so on may serve as the basis of many fine  
   
forms. The season of bloom could doubtless be extended. The only full  
 
forms. The season of bloom could doubtless be extended. The only full  
   
double form, apparently, is the Golden Glow, one of the best perennials  
 
double form, apparently, is the Golden Glow, one of the best perennials  
   
of recent intro. Its origin is uncertain, but it appears to be a form  
 
of recent intro. Its origin is uncertain, but it appears to be a form  
   
of R. laciniata. About 1894 John Lewis Childs found it among some  
 
of R. laciniata. About 1894 John Lewis Childs found it among some  
   
plants sent by correspondents. See Gng. 6:370. For structure of the  
 
plants sent by correspondents. See Gng. 6:370. For structure of the  
   
Rudbeckia inflorescence or head, see Vol. III, Fig. 1535.
 
Rudbeckia inflorescence or head, see Vol. III, Fig. 1535.
    
The cone-flowers are of easy cultivation in almost any soil and  
 
The cone-flowers are of easy cultivation in almost any soil and  
   
situation, from a semi-shady position to one in full sun. Most of the  
 
situation, from a semi-shady position to one in full sun. Most of the  
   
species are found inhabiting moist locations, but thrive well in the  
 
species are found inhabiting moist locations, but thrive well in the  
   
garden under the ordinary methods of cultivation, although R. laciniata  
 
garden under the ordinary methods of cultivation, although R. laciniata  
   
and its double form, Golden Glow, do much better if abundantly supplied  
 
and its double form, Golden Glow, do much better if abundantly supplied  
   
with moisture. R. hirta, the black-eyed Susan,—sometimes called by the  
 
with moisture. R. hirta, the black-eyed Susan,—sometimes called by the  
   
children out West "nigger-heads,"—will thrive in the driest hottest  
 
children out West "nigger-heads,"—will thrive in the driest hottest  
   
situation, where many others would fail. The best known as a garden  
 
situation, where many others would fail. The best known as a garden  
   
plant, and probably the showiest, is Golden Glow. If cut back severely  
 
plant, and probably the showiest, is Golden Glow. If cut back severely  
   
when through blooming and well watered, it often produces a second crop  
 
when through blooming and well watered, it often produces a second crop  
   
of flowers. Autumn Glory will be well liked when better known. It is  
 
of flowers. Autumn Glory will be well liked when better known. It is  
   
fine for massing and has a much longer blooming period than Golden  
 
fine for massing and has a much longer blooming period than Golden  
   
Glow, commencing earlier and continuing until frost. It resembles R.  
 
Glow, commencing earlier and continuing until frost. It resembles R.  
   
nitida, an improved form of which, known as Autumn Sun, with bright  
 
nitida, an improved form of which, known as Autumn Sun, with bright  
 
primrose-yellow flowers, is a splendid acquisition. It grows 5 to 6  
 
primrose-yellow flowers, is a splendid acquisition. It grows 5 to 6  
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