76 PROCEEDINGS OF THE AMERICAN ACADEMY 



pulcherrlme azurea, tubo basi rubro-purpureo. — California. The 

 above names all evidently belong to one species, variable as to the foli- 

 age, of which the P. azureus of Hartweg's collection represents the 

 narrowest-leaved state, and P. Jaffrayanus of the Botanical Magazine 

 the broadest. 



64. P. L^TUS, Gray in Jour. Bost. Nat. Hist. Soc. Subpedalis, 

 pube brevi moUi glandulosa coesio-pruinosus ; cset. fere prascedentis. — 

 Fort Tejon and vicinity, Xantus, Wallace. This is likely to be a 

 glandular-downy variety of P. azureus. 



Species incertce seu vix cognitce. 



P. FRDTESCENS, Lamb, in Trans. Linn. Soc. 10, p. 259, t. 6. That 

 this was collected in the Ural region (in the Government of Perm, by 

 Georgi, 1773) — far away from its known congeners — seems to be 

 made out by the ticket in Willdenow's herbarium, cited by Ledebour 

 (Fl. Ross. 3, p. 222). So that Lambert was probably misled in some 

 way as to the habitat " Kamtschatka and Unalaschka " ; and my mem- 

 oranda made in 1839 enable me to certify that there was no specimen 

 in Lambert's herbarium to authenticate Pursh's habitat, " On the 

 Northwest Coast, M. Lewis" Lambert's figure makes it clear enough 

 that the species does not belong to the section Erianthera. 



P. canosoiarhatum, Kellogg in Proceed. Calif. Acad. Nat. Sci., Sept. 

 1859, (which is translated as meaning Gray -bearded Pentstemon,) I 

 cannot make out. 



P. rostriJlo7-mn, Kellogg, 1. c, with cream-yellow flowers, is equally 

 unknown to me. 



Saccularia Veatchii, Kellogg, 1. c., from Cerros Island, oflP California, 

 of which two flowers were communicated to Dr. Torrey, one of them 

 showing a small stei'ile filament, is probably a Russelia. 



Addenda. 



P. Menziesii (p. 56), var. ? Lyalli : ramis (an caulibus ?) herba- 

 ceis virgatis sesquipedalibus ; foliis lanceolatis tenuioribus elongatis 

 (vix coriaceis 2-3^ poll, longis) ; cjet. y. Scoideri. — Between Fort 

 Colville and the Rocky Mountains, Dr. Lyall, ex herb. Hook. A 

 most remarkable form, if not a distinct species. 



Dr. Lyall also collected true P. acuminatus, Dough, on the Walla- 

 walla, with the dilated tip of the sterile filament bearded, as figured by 

 Lindley, — and further north he obtained the rare P. pruinosus, Dougl. 



