OF ARTS AND SCIENCES, 87 



shows the least vestige of lobes or teeth to the calyx. The rare 

 specimens of G. affinis in which these are obsolete in some of the 

 flowers have the more ample corolla of that species. 



Gentiana Bigelovii. Pneumonanthe, G. affini proxima; foliis 

 angustis crassioribus, superioribus linearibus; floribus spicato-cougestis ; 

 corolla vix pollicari vel minore cylindracea extus scabrida et lineis pro- 

 miuulis crenulato-scabris notata, lobis brevibus lato-ovatis plerumque 

 erectis plicarum lobulis bifidis duplo longioribus ; stipite capsuloe brevi 

 fistuloso ; seminibus ala angusta crassiuscula cinctis. — G. offinis, Torr. 

 Bot. Mex. Bound. 157, &c. — Colorado to Arizona. In S. Arizona, 

 on a high plateau, at 9,000 feet, Lemmon, 1882. This has passed as 

 an extreme form of G. affinis, but it decisively differs by its oblong 

 rather than funnelform corolla, witli shorter lobes, and by the salient 

 crenulate or roughened ridges which in the bud externally border 

 the infolded plicai ; the stipe is shorter and broader, and completely 

 fistulous, so that some of the seeds fall into it even to the bottom. 

 No. loG7, coll. Wright, from New Mexico, is exactly like Lemmon's 

 plant. Shorter and stouter specimens were collected in 1853 by 

 Bigelow in the Sandia Mountains (although not enumerated in Pacif. 

 R. Rep. iv.) ; and these are matched by Colorado specimens, no. 4G8, 

 Hall & Harbour, 1862, and no. 329, coll. Greene. 



Polemoniacece. 



L(ESELiA (GiLiorsis) Havardi. Perennis, humilis, diffuso- 

 ramosissima, pilis multiarticulaiis crispatulis cinerco-villosa ; foliis 

 ])lerumque pinnato-3-5-partitis, lobis iiliformibus cuspidato-mucronatis ; 

 floribus sparsis nudis brevi-peduiiculatis ; corolla alba hypocrateri- 

 morpha, tubo lobis ovalibus obtusis mucronulatis calyceque pauUo 

 longioribus, fauce parum obliquo ; filamentis aiqualiter insertis corolla 

 lobos oequantibus valde declinatis et superne involuto-incurvis ; ovulis 

 numerosis. — W. Texas, on the Rio Grande near Presidio del Norte, 

 Dr. N. Havard, 1881. Another of those Gilioid species which tend 

 to confuse Loeselia and Gilia. But if the strongly declinate and even 

 involute filaments of the present species do not exclude it from Gilia, 

 both genera will in the end have to be combined with Puleinonium. 



HydrophyllacecB . 



Phacelia Popei, Torr. & Gray, in Pacif. R. Rep. ii. 172, t. 10, 

 is to be re-established, and to be referred to the subdivision with " calyx 

 more or less setose-hispid." The seeds, which are pretty well figured, 



