202 Rhodora 
dant. 
Stigma usually 
Fig. 1. Plantago lanceo- longer than in 
lata. Flower of 1st form her- the2d form her- 
reine, maphrodites. 
Pistillate forms vary greatly in the ex- 
tent to which the stamens are developed. 
Some of them differ from the 2d form 
hermaphrodite only in the fact that the 
anthers are greener, and contain no pollen. 
In others the stamens are represented 
only by minute scales. In some pistillate 
types very few of the flowers ever open. 
The stigmas are extruded as usual, but 
the perianth never expands. In others 
the flowers open in the normal way. 
Both the 2d form hermaphrodite and 
the pistillate form show much variation 
in the length of the stigma. When the 
[SEPTEMBER 
1st Form Hermaphrodite. This is the 
form shown in fig. 1. Typically the fila- 
ments are about four times as long as the 
stigma. The anthers are white, and twice 
as long as broad. The pollen is very abun- 
2d Form Hermaphrodite. A flower from 
the plant found at Bethesda, Md., is shown 
in fig. 2. The filaments and style are of 
equal length, and about half as long as the 
filaments of the 1st form. The anthers are 
four times as long as broad, and yellow. 
The pollen is more scanty than in the 1st 
form, and, on account of the irregular dehis- 
cence of the contabescent anthers, is not 
usually liberated. Pollen grains of uniform 
size, diameter half as great as in the 1st form. 
Pistillate Form. Shown in fig. 3. Fila- 
ments so short that the abortive, brownish 
anthers are hardly or not at all exserted. 
Fig. 2. Plantago lanceolata. 
Flower of 2nd form hermaphro- 
dite. 
original plant of the 2d form hermaphrodite was found, its stigmas 
