ADDITIONS AND CORRECTIONS 1133 



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Anther-cells opening about % their length. 



Corolla-throat tubular; limb nearly regular. 



12a. P. leptnntus 

 Corolla-throat evidently inflated; limb 2-lipped 



23b. P. laevis. 

 Plant puberulent. 22c. P. Tidestromii. 



765 Instead of the lines in the key referring to 31. P. secundiflorus and P. 

 Fendleri insert: 



Corolla 2-2.5 cm. long; sterile stamen strongly enlarged at the tip, bearded with 

 golden liair.s. 

 Leaves very glaucous, scarcely veined; corolla lavender-pink; inflorescence 



secimd. .31. P. secundiflorus. 



Leaves slightly glabrous, strongly veined; corolla bluish; inflorescence not 

 secund. 31a,. P. Osterhoutii. 



Corolla 1.5—2 cm. long; sterile stamen slightly enlarged, bearded with yellowish 

 hairs. 32. P. lentus. 



765 Instead of the lines containing 40. P. Cleburnei and 41. P. Moffatti insert 



Corolln. throat strongly inflated, lanose within anteriorly; sterile stamens bearded 



with long hairs; corolla 2-2.5 cm. long. 40. P. Cleburnei. 



Corolla throat moderately inflated, slightly pubescent to glabi'ous within; sterile 

 stamen bearded with short hairs. 

 Inflorescence, stem above, and calyx glandular-pubescent; basal leaves 

 3-6 mm. long, plant usually more than 1 dm. liigh. 

 Basal leaves ovate; corolla 1.5-17 mm. long. 41. P. IMoffaUii. 



Basal leaves- lanceolate; corolla 18-22 mm. long. 



41a. P. Paysonii. 

 Inflorescence, stem thi-oughout, and calyx cinereous puberulent, not glandu- 

 lar; plant less than 1 dm. high; coroUa 15-18 mm. long. 



41b. P. dolius. 



769 After P. Fremontii insert: 



12a. Pentstemon leptanthus Pennell. Stems several, 1.5-2.5 cm. 

 high, oanescent-puberulcnt below, glabrate above; leaves dull-green, 

 obscurely veined, densely cinerous-puberulent, the lower ones with lan- 

 ceolate blades, obtuse, 5-6 cm. long, acutish, 3-5 cm. long, 0.5-1 cm. wide; 

 inflorescence narrow; sepals 3 mm. long, ovate, acute, slightly scarious- 

 margined, slightly erose, glabrate; corolla 13-15 mm. long, the throat 

 slightly inflated; anther-cells glabrous; sterile filament moderately bearded. 

 Dry hills; c Utah. 



12b. Pentstemon Jonesii Pennell. Stems several, 4-8 dm. high) 

 finely pubescent throughout with retrorse hairs; lower leaves petioled, 

 7-9 cm. long, spatulate-oblanceolate to obovate, emarginate; upper 

 stem-leaves ovate, rounded-clasping, finely pubescent; inflorescence narrow; 

 sepals 3-4 mm. long, broadly ovate, glabrous, abruptly short-caudate, 

 with erose scarious margins; corolla 23-25 mm. long, the tube gradually 

 enlarging into the cylindric throat, glabrous within, blue; anther-cells 

 fimbrillate on the suture, minutely puberulent; sterile filament glabrous 

 or nearly so. Dry places: S Utah. So7i. May-Je. 



769 After P. subglaber insert: 



13a. Pentstemon saxosorum Pennell. Stems several, 1-8 dm. 

 high, slender, glabrous; leaves glabrous, the lower ones with lanceolate 

 blades, 5-7 cm. long, petioled, the upper broadly lanceolate, clasping, 

 longer than the internodes, 3-9 cm. long, 0.5-2 cm. wide; inflorescence 

 narrow, secund; sepals 5-7 mm. long, ovate, with a caudate tip, with 

 scarious denticulate margins, glandular-puberulent; corolla 16-22 mm. 

 long, dark blue, sparingly glandular-puberiflent without, the throat 

 strongly inflated; upper lobes 5-6 cm. long, united 3^-J^ their length; 

 ^ anther-cells pubescent on the sides with short hairs; sterile stamen bearded 

 above with short yellow hairs. Rocky slojies: s Wyo. — Colo. Mont. 

 Jl-Au. 



769 After P. cyanocaulis insert: 



14a. Pentstemon scariosus Pennell. Stems several, 2-3 cm. high, 

 sparsely glandular-puberulent in the inflorescence; leaves dull green and 

 glaucous, glabrous, the lower ones petioled, broadly oblanceolate, 6-7 cm. 



