150 University of California Publications in Botany. [VOL. 3 



alternate), linear, rather obtuse, 3 to 6 or 7 cm. long: involucre 

 5 to 7 mm. high ; its bracts rounded on the back, the lower portion 

 half -enfolding the ray-achenes: ray -flowers 5 to 13, usually 8; 

 the 3-cleft ligules 4 to 8 mm. long : bracts of the receptacle lightly 

 united for two-thirds their length: ray-achenes with broad back 

 and acute inner edge, therefore triangular in cross-section, broad 

 at summit, pointed at base, 3.5 mm. long, nearly black; disk- 

 achenes infertile : pappus none. 



A species of the arid Transition Zone : San Jacinto Mt., Hall. 

 nos. 2268, 2662, and May, 1899, without number; Bluff Lake. 

 San Bernardino Mts., Williams; Little Green Valley, San Ber- 

 nardino Mts., Geo. R. Hall; South Fork Santa Ana River, Mrs. 

 Wilder, no. 313; Potrero, Mt. Pinos, Grinnell; Southern Sierra 

 Nevada from Greenhorn Range, Kern Co., to Olancha Peak and 

 Mineral King, Tulare Co., Hall & Babcock, nos. 5103, 5128, 5206, 

 5212, 5275, 5276, 5399, 5643. 



With the habit and whole aspect of a Madia, this species 

 combines the technical achenial and involucral characters of 

 Hemizonia. It was originally collected by Dr. Rothrock at Mo- 

 nache Meadows, etc., on the west slope of Olancha Peak, in which 

 district it is very plentiful in loose granitic soil and exhibits a 

 remarkable range of variation in habit, pubescence, and number 

 of rays. Dr. Coville 36 has already pointed out that the outer 

 receptacular bracts are not distinct, as originally described ; and 

 although Dr. Greene states that they are distinct in his Madia 

 tenella, I have yet to see specimens in which they are not united, 

 although easily torn apart while being examined. 



2. H. Clementina Brandegee, Eryth. vii. 70 (1899). H. 

 Streetsii Gray, Syn. Fl. i. pt. 2, 451 (1886) in part, not of Proc. 

 Am. Acad. xii. 162 (1877). 



Plant probably a half-shrubby perennial, 3 to 6 dm. high : 

 stems many, at length much branched and leafy to the numerous 

 cymosely crowded heads : herbage sparsely hirsute, not conspicu- 

 ously glandular but more or less viscid above : leaves rigid, linear, 

 entire or with a few short teeth : rays 12 to 20 ; disk-flowers nu- 

 merous: ray-achenes rugose-tuberculate, stipitate, beaked: pap- 

 pus-paleae of disk-achenes about 10, subulate-linear, unequal. 



seContr. U. S. Nat. Herb. iv. 133 (1893). 



