82 BOTANY. 



Pentstemon Menziesii, Benth.; PI. Hartw.,p. 327. On rocks, Cascade mountains, 0. T. 



Pentstemon procerus, Dougl.; Book. Flor. Bor. Am. 2, p. 96. McCumber's, N. Cal., and 

 Klamath basin. 



Pentstemon heterophyllus, Lind. Bot. Beg. t. 1899. Sides of Lassen's butte, N. Cal., July. 



Pentstemon glaucifolius (sp. nov.) : glaberrimus, glaucus ; caule confertim folioso basi 

 ramoso (1-2 pedali ;) foliis crassiusculis integerrimis acutatissimis lanceolatis oblongisve in 

 petiolem brevem attenuatis, casteris semi-amplexicaulibus plerumque cordato-ovatis vel e basi 

 sub-cordata ovato-lanceolatis ; panicula virgata multiflora ; pedunculis folia floralia superan- 

 tibus fulioso-bibracteatis 1-3-floris; calycis segmentis ovatis subacuminatis ; corolla azurea 

 sesquipolicari sursum ampliata ; filamento sterili apice dilatato birtello. 



Fort Reading, on the Sacramento river, California. Cauline leaves l-l^ inches long, about 

 \ inch wide at the clasping base, taperiag to the acute apex ; the floral similar, gradually- 

 decreasing in size ; bractlets also foliaceous. Anthers hispid-ciliate, also hirsute at the inser- 

 tion. Calyx nearly as in the broader-sepal] ed form of P. heterophyllus. A most elegant and 

 showy species, which I should have referred to Bentham's P. azureus from his character, except 

 that the sterile filament is not glabrous, and in my specimen of Hartweg's, No. 1879, the leaves 

 are all rather narrowly lanceolate : indeed I cannot distinguish that plant from P. heterophyllus. 

 It is possible that Mr. Bentham had the two plants, and drew the characters of the foliage from 

 our present plant, ai.d of the sterile filament from the allied P. heterophyllus. If the sparing 

 beard of the sterile filament cannot be relied upon, and the two run together, then the variable 

 species well deserves the name of heterophyllus. 



Pentstemon gracilentus (sp. nov.): glaber; caule tenero subpedali adscendente ; foliis 

 integerrimis inferioribus oblongo-lanceolatis in petiolum longiusculum attenuatis, superioribus 

 paucis augusto-linearibus sessilibus, floralibus lineari-setaceis ; panicula laxa subsimplici ; cymis 

 pedunculatis 3-5-floris ; calycibus pedicellisque asquelongis pubero-glandulosis, segmentis 

 oblongo lanceolatis breviter acuminatis ; corolla tubuloso-infundibuliformi subbilabiata ccerulea 

 staminibusque glaberrimis ; filamento sterili filiformi superne obsoletissimi barbato. 



At the base of Lassen's butte, N. California. Lower leaves about two inches loag, and 

 with a petiole about one inch long ; the upper few, and gradually reduced to slender bracts ; 

 corolla slender, half an inch long ; anthers intermediate in structure between those of the 

 sections Eupentstemon and Saccanthera, glabrous, except a minute denticulate ciliation at the 

 line of dehiscence. 



Pentstemon Newberryi (sp. nov.) : fruticosus, glaber, ca3spitoso-procumbens ; foliis ovali- 

 bus seu ovato-oblongis sub-coriaceis crebre serrulatis, caulinis obtusis basi in petiolum contractis 

 summis sessilibus acutis; racemo 7-11-floro ; calycis segmentis lanceolatis sensim acuminatis 

 pedicellum asquantibus; corolla punicea tubulosa belabiata, labio, inferiore patente trifido intus 

 lineis 2 barbato; staminibus sub-exsertis; antheris (praesertim ad margines) lanatis ; filamento 

 sterili brevi filiformi longitudinaliter parce barbato. (Plate XIV.) On rocks, forming broad 

 tufts near Mount St. Joseph's, N. California. A well marked species of the section Elmigera, 

 but with woolly anthers. Leaves turning blackish in drying. Corolla deep crimson, very 

 handsome, 1£ inches long. 



Plate XIV. Pentstemon Newberryi. A flowering stem of the natural size. Fig. 1. 

 .Corolla laid open, with the stamens. 2. A separate stamen. 3. Pistil and calyx, the ovary 

 vertically divided. The analyses enlarged. 



