4 



On the first of the month, just five years from the date of the marking 

 of the tree, the same surveyor was connecting the survey of a rancho 

 with the standard line, and probably from curiosity split out a block 

 from this oak, uncovering the mark, and forwarded it to me. 



The block here presented, it will be seen, shows the commencement 

 of growths on either side of the blaze, which is some three inches wide. 

 The next growth extends so as to cover about one-half the space, while 

 the third meets in the center with the thin bark between. The fourth 

 growth completely envelopes the crevices and bark, being much 

 thicker in the center than at the sides, and the fifth forms the perfect 

 circle of the tree. 



It is precisely five years from the period when the tree was marked, 

 and there are five perfect growths enveloping the blaze. 



The new wood, in forming over the blaze, does not unite with the 

 old wood, but becomes so firmly connected or pressed against it, as to 

 leave the reverse in possession of the marks (| S) in a very perfect 

 form. 



July 26, 1858. 



President in the Chair. 



Dr. Kellogg exhibited a specimen and drawing of a new species of 

 Cyelobothra, with the following description : 



C. coerulea, (Kellogg) or Blue Stab Tulip. — Stem four to six 

 inches, infolded by the single radical leaf nearly the whole length ; 

 umbel five or six flowered ; peduncles one and one-half inches long ; 

 bracts variable, from minute setaceous to long lance-linear, often col- 

 ored with pale pinkish bloom. Flowers small, pale blue, decked with 

 innumerable specks and striae of darker blue ; petals obovate, sub- 

 acute, serrulate-fimbriate, somewhat ventricose ; base cuneate glabrous, 

 bearded to the apex ; petaloid sepals lanceolate-acute or convolute- 

 acuminate, also bluish spotted and streaked, carinated two-thirds the 

 length of petals, filaments flattened, attenuated upwards, about half 

 the length of anthers ; anthers large, erect, looking inwards, whitish, 

 with a pale bluish tinge ; recurved stigmas, beaked at the point ; 

 capsule oblong-ovate, at length pendulous by the recurved necks of the 

 peduncles. The soUtary radical leaf long, linear, twisted, erect ; bulb 

 about the size of an hazel nut. 



This specimen was found above Forest City, not far from the region 

 of perpetual snow. We have seen but three or four specimens ; prob- 

 ably a rare plant. 



In our specimen from Placerville presented to the Society, and 

 figured Dec. 4th, 1854, there was a manifest effort to form a second 



