Vol. iN i 10:] Notes on the Pollination of Flowers. 523 
lobes spread exposing the stigma and two contiguous stamens : 
after about forty-five minutes from the appearance of the first 
crack in the bud the flower is fully expanded as drawn in fig. 
Fertilisation is affected by Sphingidae, which leave abundant 
signs of their visits in plumes adhering to the stigma. After a 
fine night, I found that almost every flower had been visited by 
them. Once at sundown I saw Bombus hemorrhoidalis in vain 
trying to reach the honey from the throat of the flower. I saw no 
butterflies going to the flowers by day, though I watched for 
them f ee 
On the second day, some fourteen hours after they open, the 
flowers become flushed with rose-purple on the corolla-lobes: and 
before the sun sets and the next night’s flowers open, they 
wither, | 
orina persica in Europe that point to differences between the 
withering is the same, but he figures the corolla lobes as _project- 
ing forward, and says that anthers do not dehisce in the bud but 
half an hour after the flower opens. Afterwards, he says, the 
stigma curls round onto the anthers. 3 
Sanvia Lanata, Roxb. 
The flowers are, in whorls, on a conspicuous spike, deep lilac 
and honied, The plant grows in the open on dry hill-sides at 
altitudes of 5,000 to 8,000 ft., and the spikes stand out of the 
short burnt-up turf of May. The following observations were 
made over a wide stretch of country both west and north of 
Simla. 
The tube is 11--12 mm. long, widening much vertically : it 
contains honey in fair quantity, the way to which is blocked by 
the sterile half anthers, as in Salvia pratensis; a tooth on the 
sterile end is just seen at the entrance to the throat in a side view 
of the flower (see fig. 4). There is no obstruction within the 
tube beyond the sterile half anthers, The outside of the corolla 
is somewhat glandular-hairy, and the gamosepalous calyx is very 
ular and for a length of 7 mm. » ts the corolla-tube. 
pushing with its head against the sterile anther lobes, brings the 
fertile anther-lobes down upon its back, just as in other Salvias, 
