98 Gray on the genus Buckleya. 
tain were rent, and seams and fissures were opened by the ex- 
pansive force of the internal fire, as it forced its way in subterra- 
nean chambers down the sides of the mountain to the point of 
final eruption. Along the line of this covered duct an occasional 
jet was thrown up through a fissure to the surface, and in some 
places small cones were raised like warts on the side of the moun- 
tain. Many such were formed by the grand eruption of 1843, 
an account of which you have probably seen,—and the explore 
tion of which was one of the most arduous and perilous I have 
ever undertaken. You will recollect that this eruption, (1843,) 
when it had flowed down the northern surface of the mountain for 
some two weeks, extending about thirty miles in length, witha 
breadth of from one to three miles, suddenly solidified on its sur 
face, like a frozen river, still continuing its flow for weeks in a sub- 
terranean canal from the top of Mauna Loa to the base of Mauna 
Kea, throwing off lateral streams to the west and northwest. On 
ness, and gliding under your feet at the rate of a steam ship. 

Art. XVI.—WNote on the genus Buckleya; by Asa Gray, MD. 
Iv a foot-note on page 170 of the 45th volume of this Journal 
(eleven years ago) is published a brief character of an interesting 
Santalaceous genus, founded on the orya distichophylla © 
Nuttall, and named Buckleya by Dr. Torrey, in compliment !0 
Mr. 8. B. Buckley, who first collected and communicated speci 
mens with the fructification. Although specimens were collected 
about the same time by Mr. Rugel, and doubtless distributed 
In the year 1843, I was fortunate enongh to procure and trans 
rt to Cambridge several living plants. Some of them were 
to be a female plant; and has flowered and produced 
abortive fruit for the last two or three years, in the form of a fust 
form pericarp, crowned with four elongated and foliaceous cal¥- 
cine lobes. But the greenish flowers, although not very small, 
