1912] Setchell: Studies in Nicotiana 9 



correspond perfectly to his figure. It is a low plant with ascend- 

 ing laterals and broad leaves. The habit is well represented 

 in the photograph reproduced in plate 6. The leaves are broad 

 proportional to their length, rounded and abruptly narrowed 

 into a very short point above, but gradually tapering to a broad 

 clasping base below with rounded but not prominent basal 

 lobes (hardly to be termed auricles). A comparison of the 

 habit-photograph mentioned above with the plate of Comes will 



22. 



show how U. C. B. G. 07 differs from his var. macrophylla. 

 The flowers are deep rose color to red with stout tube and 

 abruptly swollen, broad infundibulum, and with the limb almost 

 pentagonal. It is marked at the very shallow sinuses with 

 triangular depressed whitish areas as represented in the figure 

 of Comes (1899, pi. I and pi. VIII). The capsule is broad, 

 short, rounded and nearly enclosed in the calyx (cf. Comes, 

 1899. pi. I). This will be referred to as Nicotiana Tabacum 

 var. macrophylla. 



Nicotiana angustifolia 



68 



U. C. B. G. 07. — The seed whence the plants designated by 

 this number have sprung was obtained in 1907 from the authori- 

 ties of the Jardin Botanique de la Faculte de Medecine du Lyon, 

 under the name of Nicotiana angustifolia. It is the plant known 

 early under the name of Petum angustifolium (cf. Clusius, 

 1605, p. 310) and has passed by the name under which we 

 we received it since 1768 (cf. Miller Diet. ed. viii). It belongs 

 to the group of Tabacum varieties placed under N. fruticosa or 

 those with distinct and non- or only slightly alate petioles. It 

 is very near the N. Tabacum var. fruticosa of Comes (1899, p. 

 8, pi. I, III), but that is evidently not the Nicotiana Tabacum 

 var. fruticosa of Hooker (1876, pi. 6207) which is a plant with 



IX 

 a sessile clasping leaf and much nearer to U. C. B. G. 05. It 



is not the same plant as the one in the Linnaean Herbarium 

 preserved as the type-specimen of N . fruticosa L. It is impos- 

 sible for me, at present, to attempt to unravel the synonymy 

 of this plant further, but it will be quoted in the following pages 

 as N . angustifolia, using this binomial simply as a convenient 



