162 PROCEEDINGS OF THE CALIFORNIA 



Regular Meeting, December 18th, 1876. 

 President in the Chair. 



Thirty-seven members present. 



Donations to Museum: Large collection of plants from 

 Joseph A. Clark, Mendocino County. From Dr. J. M. Hill, 

 three specimens gold quartz, Calaveras County. From Henry 

 Edwards, one specimen of jade from near Dunedin, New Zea- 

 land. From G. A. Treadwell, specimen of chromic iron, Forest 

 Hill, Placer County, Cal. From A. J. Severance, specimen of 

 porphyry, (core of diamond drill,) from 400 feet below the sur- 

 face, Virginia, Nevada. 



Tribulus from the Eastern Shore of the Gulf of California. 



BY DB. A. KELLOGG. 



Mr. Wm. J. Fisher collected the following very ornamental Tribulus from 

 the eastern shore of the Gulf of California. 



Tribulus Fisheri. K. 



Stem annual, erect, branching from the base, the spreading stems again 

 more or less branching at the top, somewhat nodose, striate, more or less his- 

 pid throughout, chiefly at the nodes, and 1% feet high; leaves alternate, only 

 the uppermost cauline and ramose, opposite, lower pinna? largest, leaflets 6-8 

 or 9 pairs, oblong, subacute, submucronate, 4-6 or 7-lines long, oblique — one 

 or more strong lateral nerves — hispid beneath, margins entire or subserrulate; 

 stipules linear-subulate; peduncles thickened upwards, longer than the leaves, 

 1-3 inches long, axillary, or opposite the leaf; sepals 5-6, colored, narrowly 

 lanceolate, acuminate, margins scarious, very bristly-hirsute on the back, less 

 than half the length of the petals, or about 5-lines; flowers orange yellow, 2% 

 inches diameter, petals five, obovate, obtuse, subcuneate, 13-lines long, 10-11 

 broad; style long, 3-4 times the length of the carpels and longer than the sta- 

 mens, clavate, strougly 10-striate; carpels ten, 1-seeded, in a whirl around the 

 base of the style, indehiscent, but readily deciduous at maturity from the 

 elongated toroid style, obliquely triangular, laterally wedge-compressed, outer 

 edge thickened, gibbous below base, and truncate, beak obsolete, pitted in 

 two rows on the sides, crested on the back with five blunt, stout, murecoid 

 tubercles, carpels scarcely more than a line high. Highly ornamental plant. 



It is worthy of note that among Mr. Fisher's collection from Rattlesnake 

 Island, harbor of San Diego, April, 1876, are also specimens of a variety of 



