763 



Variety EIiOKTGATA Lemmon. 



."Another marked variety of Douglas 

 spruce with comparatively thin, whitish 

 (outside), shallow-furrowed bark, and 

 conspicuous lg: nar, y'ish shining- cones, 

 3y 2 -4y 2 ' lg and one-fifth as thick, with 

 comparatively sh -bracts and thin, soft 

 scales, inhabits the great forest around 

 the base of Mt. Hood, Oregon." Lem- 

 mon. Er 1:49. 

 Variety SUBEBOSA Lemmon. 



"Sm trees with w'ish, thick, corky 

 bark, thin foliage and sm ovate cones 

 1-2' lg, with convex, at length firm 

 scales, comparatively sh, slightly ex- 

 serted, nar bracts and sm sds. On hi ex- 

 posed slopes, also in secluded ravines, 

 7000-8000 alt of principal mts of north- 

 ern Ari and NM." Lemmon, Er 1:48. 

 PSILACTIS COULTERI A. Gray. 



Mohave (Parish); Arizona; Mexico. 

 FSIX.OCABPKUS Nutt. A 1:188 d. 

 P. BBEVISSIMUS Nutt, Am phil sc tr, 

 ns, 7:340. B 1:336 as Oreganus. 

 P. CATJTiESCHES Bth 319. B 1:337 as 

 "Evax c. 



P. GXiOBIFEBUS Nutt exc syn. Ab 408. 

 A 1:88 d. B 1:336 as Oreganus. 

 PSILOCARPHUS OREGONUS Nutt. 

 Am phil sc tr, ns, 7:341. B 1:336. (not 

 G 8:390.) 



SD! L A; Oregon Idaho. 

 Variety EZ.ATIOB G. B 1:336. SBar to 

 Ore. 



PSILOCARPHUS TENELLUS Nutt. 

 Am phil sc tr ns, 7:341. B 1:336. 

 Washington to Baja! Common. 

 FSILOCHEHlk Nutt, Am phil sc tr, ns, 

 7:437. = Crepis fide IK. 



P. OCCXDENTAX.X3 Nutt, Ic. B 1:435 as 

 C: o. 



PSILOSTBOPHE DC 7:261 (1838). = 

 Riddellia Nutt fide IK. 



P. GNAPHALODES DC Ic. = R: arach- 

 noidea fide IK. 



Genus PSORALEA Linnaeus. 

 Gen ed 2, 358 (1742). A 1:309 d. 

 PSORALEA CALJFORNICA S. Watson. 

 Wat 12:251. B 2:441: A 1:309 d. 



Coville, CNH 4:84. Near Kernville. 



Abrams, Fl LA 221. SBer mts. 

 Leaflets 5-7: silky-gray. 

 P. CASTOBEA Wat 14:291. SBer des- 

 erts (Parish 1283). Nev. 



Type locality: "near Beaver City, S. 

 Utah, on sandy ridges." 



P. FLOBIBUSfDA Nutt, T & G Fl 1:300. 

 B 1:140. = tenuiflora fide IK. 

 P. FBUTICOSA K 7:91. Cur 1:155 as 

 bracteata L. B 2:441. Cape of Good 

 Hope. 



P. LA IT CEO ! AT A Pursh Fl 2:475. B 1: 

 140. 



PSORALEA MACROSTACHYA D. C. 

 DC 2:220. B 1:140, 2:441. Ab 220. Da 5. 

 A 1:309 d. 



Lindley, bot reg t 1769. 



T & G, Fl 1:680. 



Throughout Cal; Baja! 



Psoralea strobilina var T & G, Fl 

 1:689. 



PSORALEA ORB1CULARIS Lindl. 

 Lindl, bot reg t 1971. B 1:139. Ab 221. 

 Da 5. A 1:309 d. Bolinas bay, Cal to 

 Baja. 



St prostrate, creeping, Ivs and ra- 

 cemes erect, Ig-stalked: Ifts 2.5-4 cm lg, 



764 



terminal one nearly orbicular, lateral 

 pair obovate: raceme oft 2 dm lg: bracts 

 larger, decid: ex villous, pedicellate- 

 glandular, cleft nearly to base, lower 

 tooth equalling p cor: sta diadelphous: 

 pod ovate, acute, 6 mm lg. 



Peduncles 1-2 ft. long: leaflets 3, orbic- 

 ular. 



FSOBAZ.EA FBY30DES Douglas. 

 Ab 220. i>a 5. B 1:140. A 1:3U,' d. 



Torrey & Gray, Fl 1:304. 



Hooker, Fl 1:136. 

 PSORALEA RIGIDA Parish. 

 A 1:73 fdr. 



P. S^BOBIZiIHA H & A, bot Beech 332. 

 B 1:139. (Var, T & G Fl 1:6S9 =mac- 

 rostachys fide B 1:140). 



Genus PTEJLEA Linnaeus. 



Shrubs or sm trees: Ivs pinnately tri- 

 foliolate, with sessile Ifts: fls sm polyg- 

 amous, g'ish w, in axy paniculate cymes: 

 sep, pet, and sta 4 or 5 : ova with a sh 

 thick stipe, 2-celled; cells 2-ovuled, low- 

 er ovule abortive; sty sh; stig 2: fr a 2- 

 celled, 2-seeded samara, winged (or not 

 winged) all around, broadly orbicular: 

 sds oblg. 



L, syst ed 1 (1735). 



P. AVGtJdTIFOXiXA Bth it. B 1:97, 2: 

 438. A 1:134 in part as crenulata. 

 PTELEA APTERA Parry. 

 Da ac pr 4:39. A 1:143, 144 d. Sargent, 

 G & F 3:33J f. 



A densely-branched .shrub. forming 

 clumps 5-15" hi, with sts 1-2' in diam; 

 young, growing shoots, with r'ish-brown 

 bark, thickly beset with pustular glands; 

 Ivs trifoliate, Ifts %-%' lg. ovate to sub- 

 rhombic, obscurely crenate, densely pub- 

 escent when young, with distinct mar- 

 ginal veins, and pellucid punctate with 

 larger and sm'er glands; infl terminal in 

 scant corymbs, or in depauperate speci- 

 mens single-ft'd; fls apparently all per- 

 fect in 4 or 5 divisions, ex sh; pedicels, 

 sep, and outer surface of cor pubescent; 

 sta one-third sh'er than pet, fil smooth, 

 widening toward the base, disc of ova 

 conspicuous, stig sessile, fr broadly 

 ovate, lenticular, wingless, more or less 

 carinate, 3-6" lg, %" broad, bluntly mar- 

 ginate at base, and tipped with the per- 

 sistent stigs, 2-celled, or occasionally 3 

 in the latter case bluntly triangular ey- 

 tevnally covered with pustular glanc.s, 

 sds ob'lg, corrugated, blk when mature, 

 occasionally both ovules developed in one 

 of the cells; unfertilized fls decid. as a 

 whole." Parry, Dav ac pr 4:39. Todos 

 Santos bay, Baja 



Type locality: Punta Banda, Baja! 

 P. BBEVISTYI.IS Greene. A 1:145 fdr. 

 P. BUI.Z.ATA Greene. A 1:135 fdr. 

 P. CINNAMQMEA Greene. A 1 :133 fdr. 

 P. CBENUT.ATA P 1:216. A 1:134 fdr. 

 P. CYCZiOXiOaCA. Greene. A 1:136 fdr. 

 P. HTUCIFEBA Greene. A 1:143 fdr, as 

 aptera. 



P. OB3CT7BA Greene. A 1:142 fdr, as 

 aptera. 

 P. OVALIFOLIA Greene. A 1:132 fdr. 



G-enus PTERIDIUM Scop. 

 PTERIDIUM AQUILJNUM Kuhn. 

 Pteris aquilina L, sp PI 105 (1753). 

 United States. 

 Genus PTEROSTEGIA F. & M. 



