180 
AMARYLLIDACE^. 
If diameter; leaves glaucous, \ of an inch broad, 
near ^ an inch close to the bulb, scape 8 inches 
high, \ diameter ; peduncle an inch ; spathe bifid 
at the end, at first covering the germen, afterwards 
disclosing it on one side ; flower 2 inches and f or 
more, tube about an inch, limb white, tinged with 
pale blush in the bud, white when blown, striped 
outside with red in withering, an inch longer than 
the anthers ; anthers ^ of an inch long, the peta- 
line scarcely exceeding the sepaline in position by 
a quarter of their length ; style f of an inch long, 
or shorter, erect; stigma suberect, included in the 
tube ; capsule three-furrowed, f-ths long, | wide, 
not widened at bottom. 
This is another of Drummond’s bulbs, which has flowered 
at Dr. Neill’s, in the Edinburgh and Glasgow Gardens, and at 
Spoflorth. It was not observed during the night in Scotland, 
nor seen to expand perfectly. It did not flower at Spoflorth 
till the 20th of September, the weather being then very cold 
and cloudy. The scape and spathe were pale reddish, the 
bud tinged with a faint blush. A little before sunset it 
expanded a little, the limb having grown pure white ; in 
that posture it remained till the same hour the next evening, 
when it opened a little wider, and on the third evening it 
made a fresh effort and reached a state of about half expan- 
sion ; the next morning the sepals acquired a red tinge on 
the outside, and the flower began to shrivel. It had the 
same primrose-like fragrance as Drummondiana. The peta- 
line filaments were prolonged a little, adhering to the base 
of the petals ; the style in my specimen was only half the 
length of the tube. The tube was quite as erect and cylin- 
drical as in Drummondiana, the figure in Sweet’s Br. fl. g. 
being very incorrect in that respect. I was at a loss to 
understand the capricious non-expansion of these nocturnal 
flowers, but I am convinced that it arises from the manner 
in which they have been treated. Increase of temperature 
prevents their expansion, and probably would obstruct the 
opening of any night-blowing flower. The requisite for 
producing the flower is a certain mean temperature, but a 
gradual decrease of temperature, such as usually takes place 
at sunset, is necessary for its expansion. Therefore if the 
plant be in a stove or warm greenhouse, and the weather 
cold and cloudy, there is no decrease of temperature at even, 
