PHACELiA HYDROPHYLLACEAE 467 



arating in the locuiicidal dehiscence and borne on the niiddle of 

 the semiseptifefOus xidlves, 6'r sometimes falling dwoy. 

 3 PHACELIA Juss. Gen. 127. 



Annual or perenrii^l herbs with alternate simple or , compound 

 leaves, an4 more or Less scorpioid cymes, or so-called spikes or 

 racemes, oJE blue, purple or white flowers. Calyx-lobes all similar 

 or nearly ^o, more or less enlarging in fruit, deciduous, at least 

 thrtwn off by the enlatgin^ capsule, except in P. sericea; the tube 

 with or sometimes without appendagfes within : these when pres- 

 ent generally in the form of 10 vertical folds or lamellar projec- 

 tions in pairs either adnate to or free from and alternate with the 

 base of the slender filaments. Stahiens equally inserted lovfr dbWn 

 on the corolla. Ovules and seeds when reduced to a J)iir col- 

 lateral and nearly as Itmg as the cell. Seed-cdat reticulated or 

 pitted. 



§ EuPHACELiA B. & H. Gen. ii, 818. Lobes of the campaiiu- 

 late corolla entite ; the tube with 10 laminate appehdages in pairs 

 at the base of the s|:amehs, Ovules a pair to each pjacerita. 

 Seeds as many as ovules, or by abortion fewer, areolate-reticulate 

 or favQse. 



* Lower leaves and all the branches opposite: spikes or branches 

 of the cyme hardly at all scorpioid: ped'icels shorter than the calyx. 

 P. PriAglei Gray Proc. Am. Acad, xyii, 223. Stem slender, 2-6 inches 



high from an annual root, glandular and pubesceiit: I'eives Imear-lartceo- 

 late, entire, tapering at base, obscurely petioled, only the uppermos't alter- 

 nate : calyx-lobes linear, 3 lines long, about half as long aS the very ope'n- 

 campariulate, blue corolla, longer than the gloBoSe capsule: seeds angled 

 and not hollowed ventrally. On the mountains of southern Oregon and 

 northern California. 



* * Pubescence or some of it hispid or hirsute: spitces or 

 branches of the cyme scorpioid and dense: pedicels short or 

 hardly any: appendages of the corolla broad and saMent, usu- 

 ally more or less united at the base of the filaments. 



■*" Leaves all simplfe an'^ entire, or some of the lower pinnately 

 3'-5-parted or divided; tlie segments or leaflets entire: capsule ovate, 

 acute : seed^s densely alveolate-punctate, the upper end aciitish. 

 P. nemoralis Greene Pitt, i, 141. Perennial, often flowering the first 

 year from seed, 2-6 feet high, stout, loosely branching; higpid throughout 

 and destitute of canescent pubescence: leaves simple ^nd entire or the 

 lower ones more or less lobed or parted at the base, ovate-oblong, 2-6 

 inches long, petiolate, rugose and without conspicuoiis parallel veins ; ra- 

 cemes geftiinate, short ahd spreading, sknder but not loose : corolla s'iftiall, 

 greenish-yellow : stamens exserted : fruiting calyx round-ovate or nearly 

 globose ; f^^^ cifalanceolafe calyx-lobes spreading a*ay from the capsule be- 

 low, connivent over it above: seeds 2 (the other 2 ovules always abortive), 

 ovate, acutish, deeply pitted, ia.tk brown. In rich alfuVikl siA\, WaSHirife- 

 ton to California. 



P. mutabilis Greene Eryfhea iv, 55. "Bieiihial, erect, slender, 10 to 

 18 inches high, not much branched, sparingly leafy, the radical -kaives few 

 and ascending, not forining a depressed tuft, sparsely hirsute throughout, 

 and with a short soriieiivfhat villous pubescence beneath the hirsute : leaves 



