TaB. 7504, 
PENTSTEMON AZUREUS. 
Native of California, 
Nat. Ord. ScrorpHuLARINEXZ.—Tribe CHELONER. 
Genus Pentstemon, Mitch. ; (Benth. & Hook. f. Gen. Plant. vol. ii. p. 940.) 
Prntstemon (Saccanthera) azwreus; perennis, basi frutescens, glaberrimus, 
glaucescens, foliis lineari-lanceolatis oblanceolatisve obtusis integerrimis 
vy. hic illis serratis radicalibus subspathulatis, racemis gracilibus secundi- 
floris, bracteis parvis lanceolatis, pedunculis 1-floris supra medium 
bibracteolatis, pedicellis brevissimis, calycis parvi lobis lineari-lanceolatis 
recurvis, corollz pollicaris violacesee tubo calyce duplo longiore ad + poll. 
longo in faucem infundibulari-campanulatam semipollicarem sensim 
dilatato, limbo patente majusculo, labii superioris lobis rotundatis re- 
curvis, inferioris latioris 3-lobi lobis brevissimis rotundatis squilongis, 
disco roseo-purpureo, antheris ovato-cordatis loculis post anthesin sub- . 
divergentibus recurvis basi saccatis marginibus rimarum pubescentibus, 
a gracili apice clavato glaberrimo, ovario glaberrimo, stylo 
gracili. 
P, azureus, Benth. Pl. Hartweg. p. 327; in Journ. Hort. Soc. Lond. vol. v. 
(1850) p. 144. Paat. Fl. Gard. vol. ii. p. 188, t. 64. Lemaire Jard. Fleur. 
t. 211. Moore & Ayres Mag. Bot. (1850) t. 209. A. Gray in Proce. Amer. 
Acad. vol. vi. (1862) p. 75; Bot. Calif. vol. ii. p. 561; Synopt. Flor. N. 
Am. vol. ii. pars. I. p. 272. 
A common and very variable plant throughout the 
state of California, ascending in a dwarf form to 8000 ft. 
above the sea. A. Gray, in his Synoptical Flora of the 
United States, describes five varieties, with none of which 
does that figured here exactly accord, agreeing best with 
var. ambiguus (P. heterophyllus, Wats., not of Lindley, 
_ figured at tab. 1899) in stature, habit and upper leaves 
narrowed to the base, but having a much longer corolla. 
Another variety is Jaffrayanus (P. Jaffrayanus of this 
work, tab. 5045), which, with the shorter corolla of var. am- 
biguus, has a stouter habit, much broader lower leaves, and 
the upper leaves broad at the base. P. aawreus belongs 
to a comparatively small section of the genus (which 
contains twelve species) distinguished by the structure 
of the anthers, the lobes of which are confluent above, and 
instead of diverging remain nearly parallel, dehiscing in 
their upper halves and across the top, whilst their lower 
NovemBER Ist, 1896, 
