52 Addisonia 



present time may be mentioned Mme. E- Poirier, Maurice Rivoire, 

 G6ant de Lyon, Holyrood, and John Bull, to which may be added 

 three excellent varieties of American origin. Achievement (Alexan- 

 der), San Mateo Star (Bessie Boston), and The Peach (Stillman). 



According to information furnished to the writer by M. Andr6 

 Charmet of Monplaisir, Lyon, France, the variety "Ami Nonin" 

 was originated by him in 1908 and was derived from varieties that 

 were never disseminated. It was named in honor of his friend, 

 Auguste Nonin, a well-known horticulturist of Chatillon, near Paris, 

 and was first introduced to commerce in 1910. It has been culti- 

 vated in the dahlia border of The New York Botanical Garden since 

 1918, from roots originally furnished by Henry A. Dreer of Philadel- 

 phia. The flower-head represented on our plate was gathered Sep- 

 tember 15, 1920, and was drawn in its natural size. 



A plant ordinarily three to five feet high, with large crimson- 

 carmine flower-heads of the "collarette" type, the "collar" more or 

 less white. The stems are pubescent. The lower leaves are pin- 

 nately parted, with usually five primary lobes or leaflets, with 

 small accessory alar lobes at the bases of the stalks of the lowest 

 pair and often a single lobe at the outer (lower) base of the main 

 lamina of the lowest pair; the leaflets are dark green, short-pointed, 

 and rather coarsely dentate and minutely ciliolate on margins, the 

 teeth moderately cuspidate; the upper surface is puberulent along 

 midrib and veins, the lower is sparingly pubescent or pilose on 

 midribs and veins. The flower-heads are mostly three and one 

 half to four and one half inches broad and are held suberect on 

 inchned peduncles. The bracts of the outer involucre are five to 

 eight, rather broadly spatulate, subacute or obtuse, and coriaceous. 

 The bracts of the inner involucre are usually eight, ovate-lanceolate, 

 membranaceous, pale green or straw-colored, subacute or obtuse. 

 The ray florets are commonly eight; their large outer ligules are 

 elliptic, somewhat concave below and recurved at the commonly 

 bifid-cuspidate apices, the color crimson-carmine, sometimes fading 

 to old rose ; the ligules of the inner series are one half to two thirds 

 the length of the outer and about half their width, three- to five-cleft 

 or parted, and largely white, but showing varying proportions of 

 crimson-carmine, with shadings of yellow. The disk florets are 

 usually one hundred and thirty to one hundred and fifty. 



Marsh AL,L, A. HowE. 



