1912] HASSELBRING—CUBAN TOBACCO 123 
THE MACROPHYLLA GROUP 
No. 7: pl. IV: fe. 1; Pl. VI. figs 73 phe Xe fig. 14 
No. 7 is a dark green vigorous type which grew to a height of 
2m. in Cuba and 2.5 m. in Michigan. In the field growing near 
the other plants of the macrophylla group, the plants of this type 
stood out in strong contrast by reason of their darker color and tall 
growth, and their loose spreading inflorescence. The leaves are 
rather thick and firm in texture. This type is not liked by Cuban 
growers, some of whom saw it in the experimental plats. 
Nos. 16 and 28: pl. VII. fig. 9 
Nos. 16 and 28 proved to be identical. They are a broad- 
leaved type, differing from no. 7 in their dwarfer habit and more 
compact growth, as well as in their paler green color. The whole 
inflorescence is more compact than that of no. 7, and the flowers 
are paler. When grown side by side, these two types show a 
uniform and striking contrast with no. 7. 
No. 18: pl. IV. fig. 2; pl. VILL. fig. 12; pl. X. fig. 15 
No. 18 has the general habit and characteristics of nos. 16 and 
28, which it resembles more than it resembles no. 7. This type 
is distinguished from the others by its remarkably large broad 
leaves, which are soft and flaccid, so that they appear wilted in the 
sun. Some plants of this type grown in Cuba during the summer 
season showed all the characteristics of the parent plants which 
had been grown during the previous winter. In Michigan the leaves 
grew to a very large size, but remained soft and flaccid, differing 
clearly from the more turgid leaves of the other forms. 
THE HAVANENSIS GROUP 
No. 25: pl. IV. fig. 3; pl. VIII. fig. 10; pl. X. fig. 17 
No. 25 has broadly ovate or oblong leaves, arching at first and 
later deflexed, narrowed into a distinct pandurate, wavy, and 
bullate shank, which expands again into large wavy auricles 
terminating in long decurrent wings. The upper leaves are ovate 
to ovate-lanceolate and acuminate. This form may be taken as 
