OP ARTS AND SCIENCES. 265 



H. Floridana, Gray. Glabrous, but resinous-atomiferous through- 

 out even to the corolla and achenes, 2 to 4 feet high, slender, branch- 

 ing above : leaves distant, narrowly oblong-oblanceolate or the upper 

 linear, attenuate to a long petiole, obtuse or acutish, on the branches 

 much reduced and linear or spatulate : heads i'ew, 7-10-flowered, 2 

 lines long; involucral bracts 8 or 10, obtuse: achenes smooth, equal- 

 ling the involucre. — In sphagnous swamps, Volusia County, Florida ; 

 discovered by Dr. S. Hart Wright, of Penn Yan, New Y«ork, in Novem- 

 ber, 1886, by whom it was sent to Dr. Gray. It was recognized as a 

 new genus, but description and publication were delayed until more 

 material could be examined. This was received only during Dr. 

 Gray's last illness, and at Dr. Wright's request the genus is now pub- 

 lished. Dr. Gray left no notes upon its characters, but it is evidently 

 closely allied to Gymnocoronis and Adenostemma, from which it is distin- 

 guished by habit, the alternate entire leaves, the narrower styles, the 

 smooth thin-angled achenes, and the few bracts upon the receptacle 

 embracing the outer ones. It is the only member of the Piqueriece 

 that has been detected within our limits. 



Chaptalia Seemannii, Benth. & Hook. Closely resembling C. 

 nutans in appearance, from which it is distinguished by a number of 

 short appressed distant bracts upon the scape, the " heads never nod- 

 ding," and the short stout beaks of the achenes. This species has 

 been found during the past season by Mr. Pringle in Chihuahua, 

 and proves to be the same as specimens collected in New Mexico 

 {Greene) and Arizona (2789 Lemmon), which are referred in the 

 Synoptical Flora to C. nutans. 



Pentstemon Shockleyi. Somewhat woody at base and branch- 

 ing, the branches erect, H- feet high, finely puberulent throughout: 

 leaves nearly uniform in size, oblong-ovate, obtuse or acute, sessile or 

 nearly so, undulate, entire, 3 to 5 lines long, the floral gradually 

 smaller : flowers mostly solitary and nearly sessile in the axils ; calyx 

 3 lines long, the lobes lanceolate, acuminate ; corolla purplish, 5 lines 

 long, only slightly dilated above and the oblong obtuse lobes nearly 

 equal ; sterile filament beardless : capsule equalling or a little exceed- 

 ing the calyx. — On Miller Mountain, Esmeralda County, Nevada, at 

 8,000 feet altitude ( W. H. Shockley, 1886). Of the P. deustus group ; 

 strongly marked by its small undulate leaves, its strict subspicate 

 inflorescence, and very small narrow flowers. 



Eriogonum pendulum. Near E. lachnogynum, a tall perennial, 

 woody and branching at base, densely white-tomentose throughout, the 

 scattered oblong-oblanceolate obtuse leaves (1 to 2 J inches long) and 



