398 CONTRIBUTIONS FROM THE NATIONAL, HERBARIUM. 



Stamena exserted from the corolla; plants perennial; flowers in cymes. 



Flowers blue or purple 4. PHACELIA. 



Flowers white. 

 Leaves, at least most of them, entire, the lowest ones sometimes pinnate. 



4. PHACELIA. 

 Leaves deeply lobed 3. HYDROPHYLLUM. 



1. ROMANZOFFIA Cham. 



1. Romanzoffia sitchensis Bong. Mistmaiden. Frequent above timber line, on 

 wet cliffs; occasionally found on wet rocks at lower altitudes. Alaska to Calif, and 

 Mont. — Plants -wdth bulblike bases; leaves basal, slender-petioled, 1 to 3 cm. broad; 

 flower stems slender, 5 to 15 cm. long, often prostrate, few-flowered; corolla white 

 or tinged with pink, 7 to 10 mm. long; capsule longer than the calyx. 



A handsome, delicate plant, closely resembling some of the saxifrages. 



2. NEMOPHILA Nutt. 



1. Nemophila breviflora A. Gray. Collected by Holzinger, somewhere between 

 Lake McDonald and Sperry Glacier. B. C. to Oreg., Colo., and Mont. — Annual, 

 branched, 10 to 30 cm. high; leaves lobed, the lobes oblong-lanceolate, 5 to 15 mm. 

 long, entire; corolla 2 to 3 mm. long, whitish, shorter than the calyx. 



3. HYDROPHYLLUM L. 



1. Hydrophyllum capitatum Dougl. Waterleaf. Woods at east entrance 

 Umbach. B. C. to Calif., Colo., and Mont. — Stems 10 to 20 cm. high, finely hairy; 

 leaves with 5 or 7 obovate lobes, these 2 to 5 cm. long, lobed; corolla 7 to 8 mm. long. 



4. PHACELIA Jtiss. Phacelia. 



Hairy perennials; flowers in 1-sided racemes or cymes; corolla bell-shaped, the 

 stamens exserted. 



Leaves entire; corolla white I. P. leucophylla. 



Leaves lobed; corolla purplish blue. 



Leaves lobed about halfway to the midrib, green, nearly glabrous, the lobes 

 broad 2. P. lyallii. 



Leaves lobed to the midrib, gray-silky, the lobes linear or oblong . . 3. P. sericea. 



1. Phacelia leucophylla Torr. White phacelia. Common at nearly all altitudes, 

 in thin woods or on open slopes, but most abundant above timber line, especially on 

 rock slides. B. C. to Colo, and Nebr.— Stems 10 to 30 cm. high, usually in clumps; 

 leaves oblanceolate or elliptic, 5 to 12 cm. long, a6ute, with conspicuous veins, 

 covered with stiff grayish hairs; corolla about 6 mm. long, dirty white; calyx 

 covered with stiff bristle-like hairs. 



The stiff hairs penetrate the skin easily. 



2. Phacelia lyallii (A. Gray) Rydb. Blue phacelia. Plate 50, B. Common 

 above timber line, especially on rock slides. B. C, Idaho, and Mont. — Plants 10 to 

 20 cm. high, usually in dense clumps, green; corolla about 5 mm. long. 



A very showy plant, which remains in flower a long time; it flowers rather late in 

 the season. One plant found at Sexton Glacier had white flowers. 



3. Phacelia sericea (Graham) A. Gray. Silky phacelia. Frequent, at least on 

 the east slope; chiefly at middle altitudes, but sometimes above timber line or at 

 low elevations, on open rocky slopes. B. C. to Nev., Colo., and Alta.— Plants 

 10 to 30 cm. high, grayish; inflorescence narrow, dense, and spikelike; corolla 5 to 6 

 mm. long. 



This blooms earlier than P. lyallii, with which it occasionally gro^vB, and it is only 

 rarely that both are found in flower in the same locality. 



