PINK FAMILY 283 



3. WAHLBERGELLA Fries. 



Perennial herbs, with opposite leaves. Calyx ovoid, more or less inflated, 

 5-toothed, 10-nerved. Petals inconspicuous, often included, with small crowns 

 and 2-cleft blades. Stamens 10. Styles 5, rarely 4, alternating with the petals. 

 Ovary strictly 1-celled. Capsule opening by twice as many valves as there are 

 styles. Seeds laterally attached; embryo curved. [Lychnis Am. auth. in part.] 



Tall, usually 3 dm. high or more, several to many-flowered, in narrow cymes 



Petals included. 1. W. Drummondii. 



Petals exserted. 



Ovary sessile; blades of the petals emarginate. 2. W. striata. 



Ovary stipitate; blades of the petals 2-cleft. 3. W. Parryi. 



Low, about 1 dm. high; flowers solitary, or 2 or 3; seeds winged. 

 Flowers in anthesis erect; fruiting calyx not much inflated. 



Petals usually exserted: claw broad; blade short and broad, emarginate. 

 Claws of the petals and the filaments naked; plant glandular- villous. 



Claws of the petals and the filaments ciliate; plant puberulent. 



Petals usually included; claws and blades narrow; the tatter bifid; filaments 



glabrous. 6. W. montana. 



Flowers in anthesis nodding; fruiting calyx much inflated. 



Petals slightly exserted; calyx-lobes broadly lanceolate; five of the stamens adnate 



to the petals for one-third their length. 7. W. attenuata. 



Petals included; calyx -lobes short, rounded-ovate; five of the stamens only slightly 

 adnate to the petals at the base. 8. W, apetala. 



1. W. Drummondii (Hook.) Rydb. Stems viscid-puberulent throughout, 

 2-4 dm. high; basal leaves oblanceolate, petioled, 5-10 cm. long, grayish puberu- 

 lent, early deciduous; stem-leaves linear, attenuate; calyx oblong-cylindric, 

 with green nerves, glandular-viscid, 10-12 mm. long; petals white or purplish; 

 blade narrower than the claw. Silene Drummondii Hook. L. Drummondii S. 

 Wats. Dry hillsides and plains: Man. N.M. Ariz. B.C. Plain Mont. 

 Je-Au. 



2. W. striata Rydb. Stems 3-5 dm. high, finely puberulent and more or 

 less viscid above; basal leaves and lower stem-leaves narrowly oblanceolate, 

 5-15 cm. long; upper stem-leaves sessile and linear-lanceolate; calyx densely 

 viscid-puberulent, strongly 10-nerved, 10-12 mm. long; lobes oblong, obtuse; 

 petals about 15 mm. long; claw long, narrowly cuneate. L. striata Rydb. Hill- 

 sides: Wyo. Colo. Utah. Alta. Mont. Jl-Au. 



3. W. Parryi (S. Wats.) Rydb. Stem slender, about 3 dm. high, finely 

 pubescent, glandular above; leaves linear, 3-6 cm. long; calyx inflated, ovate- 

 oblong, about 12 mm. long; teeth broad, acute; petals purplish, about 16 mm. 

 long; claw broadly auricled. L. Parryi S. Wats. Hills: Wyo. Submont. 



4. W. affinis (Vahl.) Fries. Stem 1-3 dm. high, glandular-villous through- 

 out; leaves linear or narrowly linear-oblanceolate, 1-3 cm. long, glandular-vil- 

 lous; calyx ellipsoid, usually contracted at the mouth, in flower 8-10 mm. long; 

 teeth short, acutish; petals white or pink; claws auricled. L. affinis Vahl. 

 High mountains: Greenl. Lab. Alta.; Eurasia. Alp.Subalp. Jl-Au. 



6. W. Kingii (S. Wats.) Rydb. Stems erect, 1-2 dm.. high, densely puberu- 

 lent and glandular above; leaves narrowly linear-oblanceolate; calyx about 12 

 mm. long; lobes ovate, rounded at the apex; petals exserted; appendages oblong. 

 L. Kingii S. Wats. Mountains: Utah. Subalp. Jl. 



6. W. montana (S. Wats.) Rydb. Stem nearly glabrous below, glandular 

 above, slender, 0.5-1 dm. high; leaves linear-oblanceolate, 3-5 cm. long, ciliate 

 on the petioles; calyx ovate-campanulate, 10-12 mm. long; teeth short, acute. 

 L. montana S. Wats. Mountain peaks: Colo. Wyo. Subalp. Alp. 



7. W. attenuata (Farr.) Rydb. Stem 1-1.5 dm. high, slender, sparingly 

 villous; leaves linear, 2-7 cm. long, light green, sparingly pubescent; flowers 1-2, 

 nodding in anthesis; calyx ellipsoid, somewhat inflated, narrowed at the mouth, 

 densely villous; petals purple; blades cuneate, bifid. High mountains: Alta. 

 B.C. Subalp. Jl-Au. 



8. W. apetala (L.) Fries. Stems 0.5-2 dm. high, puberulent and more or 

 less glandular-viscid; flowers at first drooping, erect in fruit, perfect or pistillate; 



