116 ADEXOPKOEA VERTICILLATA. 



genus. There is this difference, however, that whilst the hairs of the Cam- 

 panulas are thickly set, without any degree of regularity, those of the 

 Adenophoras are arranged in ten rows, as may be easily seen by viewing the 

 end of the style through a Stanhope lens before the stigmas diverge. The 

 pollen is of the same globular form, and covered with asperities, by which it 

 attaches itself to the hairs of the style. 



The genus appears to be almost exclusively Siberian, all the species, with 

 one or two exceptions, being found in Northern Asia. They are not, we 

 believe, very commonly grown; but merit attention, both for their ornamental 

 character and their perfect hardiness. 



The species we have figured, verticillata, is, perhaps, one of the most interesting. 

 It grows from two to three feet high, the stems being exceedingly slender. The 

 leaves vary considerably in form, those near the base being almost orbicular, 

 with long attenuated foot-stalks ; those higher up the stem are lanceolate, 

 sessile, or nearly so, and arranged in whorls of from four to six ; near the 

 summit of the stem they are occasionally alternate. The flowers are also 

 usually arranged in whorls, which terminate the stem, so that the specific 

 name, verticillata, though apparently given in reference to the disposition of the 

 leaves, is equally applicable to that of the flowers. The corolla is somewhat 

 tubular, with five pointed lobes, and is of a delicate pale blue ; the filaments of 

 the stamens are dilated at the base, and bearded as in other species ; and the 

 style is cleft at its extremity into three short blunt lobes, which become ultimately 

 reflexed. This species is one of the earliest introduced to this country. It flowers 

 in June and July. 



There are nearly twenty other species described, several of which fully equal 

 the verticillata in interest. Two of them arc quite dwarf, and suitable for the 

 front of the borders, the A. coronopifolia and the A. denticulata ; the others 

 vaiy from two to four feet in height. The A. maveolem, A. latifolia, A. stylosa, 

 and A. marsupiiflorn, arc all worth cultivation, and may be had of some of the 

 leading Florists, notably of Messrs. Henderson of the Pine Apple Nursery, who 

 also possess the verticillata. 



The treatment of all the species is similar — they require nothing beyond the 

 ordinary garden soil of rather sandy texture: where peat is at hand, a little may be 

 employed with some advantage. Their increase is effected either by division of 

 the root, or by seeds, which are ripened in abundance, and often to be had of the 

 Seedsman ; plants thus raised will generally flower the second season 



The name of the genus is derived from aden, a gland, and phoreo, to bear; in 

 allusion to the cylindrical glandular body surrounding the base of the style, to 

 which reference lias already been made, and which is shown separately in the 

 plates, on a somewhat enlarged scale. 



