106 PROF. T. H. HUXLEY ON THE GENTIANS. 
already suggested that G. concinna, saxosa, and pleurogynoides 
may be varieties of G. montana. Perhaps it may be as well to 
mention that the mycelia of fungi, not infrequent in dried flowers, 
occasionally resemble fimbriæ. 
IV. Stephananthe. 
The corolla is elongated, campanulate, or infundibulate ; 
the relatively short lobes becoming deflexed at right angles 
to the elongated “cup” in the fully expanded flower. Just 
below the junction of each lobe with the cup, the inner 
wall of the corolla is produced into a transverse ridge, the 
free, slightly convex, edge of which becomes divided into a 
number of broad flat unequal lobes, and these, again, subdivide 
into approximately equal, flat, elongated and pointed pectinations. 
The longitudinal axis of these (in the species which I have exa- 
mined) is traversed by a vascular bundle derived from the veins 
of the corolla ; and, in this respect, they differ from the fimbri® 
of Lophanthe, in which I have found no vascular bundles, For 
the sake of distinguishing them from the fimbris, I propose to 
call these structures, which constitute the well-known “corona,” 
pectines. 
It is easy to imagine that the pectines may have been derived 
from parastemonal fimbrie, by the transverse extension of the 
upper ends of the two series of such fimbrie until they met in 
the middle line, while the longitudinal part of each series be- 
came aborted; but I have met with no indication of the transi- 
tional forms between Lophanthe and Stephananthe which, on tbis 
hypothesis, must have existed. In Frasera there are transversely 
disposed rows of fimbriz which have a certain, though not very 
close, resemblance to the pectines ; but they are situated on the 
basal side of the nectaries and close to them, while the pectines 
are on the opposite side and far away from the nectaries. In the 
expanded flower, the pectines are directed upwards and inwards, 
sometimes more in the one direction, sometimes more in the other. 
It would be very interesting to ascertain whether their position 
does, or does not, vary according to the state of development of 
the pollen and the stigmatic surfaces. 
The following species are referable to this type. Those marked 
with an asterisk are placed here on the authority of Grisebach or 
of Weddell. 
