6 Addisonia 



rose, pink, greenish-white atld white. The remarkable variety of 

 coloring seen in the early hybrids is maintained in the repeated 

 intercrossing that occurs in the mixed plantings of hybrids grown 

 for the production of seed. 



From such a mixture, the successful selection and isolation of a 

 strain that is true or nearly identical to the type of N. Forgetiana 

 was accomplished in the breeding plots at the New York Botan- 

 ical Garden. Seed labelled " N. Forgetiana Hyb. mixed " obtained 

 from Yilmorin-Andricux & Co., gave the usual mixture of types. 

 Of these several plants with rose-red flowers were self-pollinated, 

 the flowers being enclosed in glassine paper bags to prevent cross- 

 pollination. One of these plants was highly self -compatible and 

 its offspring have been remarkably uniform in general habit of 

 growth and in flower color, closely conforming in all respects to 

 the characters given for the plants of Nicotiana Forgetiana. The 

 painting for the accompanying plate was made from one of these 

 plants and the description of the strain is as follows: 



An annual herb usually from two to three feet tall, abundantly 

 branching from the base. The leaves are alternate, entire, and 

 pubescent, the basal ones often one foot long, oblong-lanceolate 

 with a winged petiole; the upper stem-leaves are smaller. The 

 flowers are in loose somewhat compound panicles, the individual 

 plants often blooming continuously for three months. The cor- 

 olla is almost uniformly rose red, salverform, the tube about an inch 

 and a quarter long, the limb of five nearly equal lobes and about an 

 inch and a quarter in diameter. There are five included stamens. 

 The fruit is a dry two-valved dehiscent pod. 



The species as originally described and as represented in this 

 strain recovered after hybridization is a highly ornamental plant, 

 which, however, is represented in the mixed plantings of the hy- 

 brid stock by at least some of the plants with rose-red flowers. 



A. B. Stout. 



Explanation of Plate. Fig. 1. — Inflorescence. Fig. 2. — Leaf. Fig. 3. — 

 Corolla, split open, showing stamens. Fig. 4. — Flowering calyx. Fig. 5. — 

 Fruiting calyx. 



