132 BOTANICAL GAZETTE . [FEBRUARY 
1722, LABAT® describes four forms cultivated on the islands of 
tropical America, and it is quite probable that these were generally 
distributed over the islands. 
In the following pages a brief description and history of the 11 
types cultivated both in Cuba and Michigan are given. In desig- 
nating the types, the same numbers are used by which they were 
designated in the cultures. In the accompanying plates showing 
leaves of the different types, each type shown is represented by all 
the leaves of a single plant of that type. 
Broadly speaking, the types may be divided into two groups. 
The plants of the first group are characterized by broad, rounded 
leaves, short in comparison with their width, and scarcely or not at 
all pandurate, but sessile by a broad base and decurrent auricles; 
or the lower leaves contracted into a somewhat pandurate shank. 
The base or shank of the leaves in general is not as much wrinkle 
as in the second group. The upper small leaves on the stem and 
subtending the branches of the inflorescence are ovate, acute, or 
barely acuminate. The corolla tube is suddenly inflated just above 
the middle, and the limb is pentagonal and obscurely or scarcely 
lobed, the lobes being apiculate. The plants of this group probably 
constitute the collective species Nicotiana macrophylla. The group 
will therefore be referred to as the macrophylla group. 
The plants of the second group are marked by oblong-ovate 
leaves, longer in comparison with their width than those of the 
- first group. They are more pointed, often acuminate, and have the 
base contracted into a pandurate, very wavy and wrinkled shank, 
with broad, decurrent auricles. The uppermost leaves are ovate to 
lanceolate and long-acuminate. The corolla tube is trumpet 
shaped, gradually expanding from the base, with the stellate limb 
distinctly and often deeply lobed, with sinuate-acuminate lobes. 
This group is more heterogeneous than the former, and makes up 
the greater part of the tobacco grown in Cuba. The typical forms 
of this group probably constitute the collective species Nicotiana 
havanensis. Some of the less typical forms may belong to others 
of the older species. 
9 LABAT, JEAN Barnste, Nouveau voyage auxislesdel’Amerique. 4to ed. 2:166. 
1724; also t2mo ed. 4:476. 1724; the edition of 1722 was not seen. See also Du 
Tertre Jean Baptiste Histoire générale des Antilles. 2:99. 1667. 
