804 SCROPHULARIAGEAE 



- V. ASPLENIFOLIAE. 



Only Pacific States species. 14. P. omithorhynca. 



VI. CONTORTAE. 



Only Pacific States species. 15. P. contorta. 



VII. SURRECTAE. 



Inflorescence villose; calyx-lobes laterally 1-2 mm. long; beak of galea 3-6 mm. long; cauline leaves rapidly 

 diminishing toward upper part of stem, the dense spike semiscapose. 16. P. attollens. 



Inflorescence glabrous; calyx-lobes laterally 0.5-1 mm. long or less; beak of galea 6-12 mm. long; cauline 

 leaves well developed, only gradually diminishing toward upper part of stem. 17. P. groenlandica. 



VIII. COMPACTAE. 

 Only Pacific States, species. , 18. P. Howellii. 



IX. Canadenses. 



Only Pacific States species. 19. P. crenulata. 



X. Racemosae. 



Only Pacific States species. 20. P. racemosa. 



1. Pedicularis centranthera A. Gray. Sharp-anthered Lousewort. Fig. 48G2. 



Pedicularis centranthera A. Gray ex Torr. Bot. Mex. Bound. 120. 1859. 

 Pedicularis centranthera var. exulans M. E. Peck, Torreya 28: 56. 1928. 



Plant glabrous (except calyx-tubes which are loosely villose), the stem not over 1 dm. tall, 

 exceeded by the leaves which may reach 15 cm. long and 5 cm. wide, with 9-12 pairs of pinnules 

 (proximal cut to midrib), each oblong-ovate and doubly dentate, on petioles 3-6 cm. long. Bracts 

 of inflorescence linear-oblanceolate, entire, scarious, 3-6 cm. long. Pedicels 1-2 mm. long ; calyx 

 20 mm. long, with 5 cuspidate scarious-margined lobes, the uppermost smallest ; corolla 35 mm. 

 long, glabrous, purple, its slender tube 20 mm. long, the short throat and the lips 15-17 mm. 

 long, the upper lip deflexed-hooded, the lower lip slightly shorter and with appressed dark 

 violet-purple lobes; anther-cells with subulate-attenuate tips that project from hood of galea; 

 capsule 10 mm. long, globose-ovoid, dehiscing both dorsally and ventrally ; seeds 4 mm. long. 



In sagebrush or among junipers and piiions, Upper Sonoran Zone; Great Basin province, south central 

 Oregon to Colorado, New Mexico, and Arizona. Type locality: southern New Mexico. May-June. 



2. Pedicularis semibarbata A. Gray. Pine-woods Lousewort. Fig. 4803. 



Pedicularis semibarbata A. Gray, Proc. Amer. Acad. 7: 385. 1868. 



Inflorescence, especially the calyces and pedicels, arachnoid-lanulose, or else the plant glab- 

 rous throughout. Stem not over 1 dm. tall, exceeded by the leaves which may reach 15 cm. long 

 and 5 cm. wide, with 9-12 pairs of pinnules (all cut essentially to midrib), each ovate and 

 deeply pinnately cut, with segments sharply irregularly toothed, on petioles 3-4 cm. long, and 

 with shorter oblong colorless bracts that sheath the lower stem; upper bracts of inflorescence 

 attenuate-acuminate, slightly but sharply toothed; pedicels becoming 4-5 mm. long; calyx 10 mm. 

 long, with 5 linear entire or slightly dentate lobes, the uppermost smallest; corolla 15-20 mm. 

 long, externally white-villulose, pale yellow, the glabrous apices of the lips purplish, its slender 

 tube 2-2) mm. long, the throat slightly longer, the upper lip rounded, the lower lip 2 mm. shorter, 

 its lobes merely projecting; anther-cells with sharply acuminate tips that project from hood of 

 galea; capsule 9 mm. long, decurved, dorsally rounded and dehiscing to base, ventrally straight 

 and indehiscent ; seeds 4 mm. long. 



Dry coniferous, usually pine, woods, Transition and Canadian Zones; southern Oregon to southern Cali- 

 fornia, and in adjacent Nevada. Type locality: Yosemite Valley, California. May-July. 



3. Pedicularis densiflora Benth. Indian Warrior. Fig. 4804. 



Pedicularis densiflora Benth. ex Hook. Fl. Bor. Amer. 2: 110. 1838. 

 Pedicularis attenuata Benth. in A. DC. Prod. 10: 574. 1846. 



Plant finely pubescent throughout or the leaves glabrescent, the stem and inflorescence often 

 more coarsely brown-pubescent. Stem 1-5.5 dm. tall, exceeding the leaves which may reach 

 18-25 cm. long and 4-5 cm. wide, with 12 to 15 pairs of pinnules (lower cut nearly to and others 

 far toward midrib), each oblong-lanceolate, irregularly and often doubly sharply dentate, on 

 petioles 4-10 cm. long; bracts of inflorescence about equaling the flowers, oblong-lanceolate, 

 distally with salient sharp teeth ; pedicels 3 mm. long ; calyx 8 mm. long, with 5 triangular- or 

 lanceolate-acuminate entire lobes that are all equal ; corolla 25 mm. long, glabrous, deflexed from 

 calyx-tube, the upper lip 16 mm. long, cylindric, purple-red, rounded at apex but with the actual 

 tip obscurely protruding, the lower lip 2 mm. long, with oblong-lanceolate yellowish lobes; 

 anther-cells acute; capsule 7 mm. long, slightly decurved, dehiscing to base both dorsally and 

 ventrally ; seeds maturing 1 or 2 to a cell, 4 mm. long. 



Sandy or gravelly soil, oak or pine woodland, Upper Sonoran and Transition Zones; Pacific drainage, 

 southern Oregon to southern California. Type locality: California. Feb. -May. 



