Phacella. HYDROPHYLLACE.E. 163 



the spreading filiform pedicels longer than the fruiting calyx : corolla light blue or nearly 

 white, 4 to 6 lines in diameter: calyx-lobes linear or lanceolate, in fruit nearly twice the 

 length of the capsule (this only a line and a half long). Fl. i. 140; Gray, Man. I.e. 

 (1'luk. t. 245, fig. 5.) Polcmonium dubium, L. Eutoca pare! flora, R. Br. in Richards. App. 

 Frankl. Journ. 30 ; Benth. 1. c. Cosmanthus parcijiorus, A.DC. 1. c. Phacella pusilla, Buck- 

 ley, 1. c., ex char. Shaded places, Pennsylvania and Ohio to Carolina, Missouri, and Texas : 

 the south-western and also Virginian forms passing into 



Var. hirsuta, Gray. More hirsute and the stems less slender, apparently growing 

 in more open or dry soil : corolla larger, 5 to 7 lines in diameter. Proc. Am. Acad. 1. c. 

 P. lursula, Xutt. 1. c. 191. Prairies and barrens, south-western part of Missouri to eastern 

 Texas. Also similar forms from Giles Co., Virginia, and Stone Mountain, Georgia, 

 Canby. Well developed capsule 2 lines long. Ovules only 4 in some flowers, 8 in others. 



# * Ovules (and commonly the seeds) about 8 on each placenta: plants stouter, with less divided 

 leaves : vestiges of appendages to the corolla sometimes manifest, in the form of very narrow 

 lamellae approximate in pairs 'bet ween the stamens. 



P. patuliflora, Gray. Rather softly cinereous-hirsute or pubescent, and the inflorescence 

 somewhat glandular, branched from the base, a span to a foot high, erect or diffuse : leaves 

 obovate or oblong (an inch or two long) ; the lowest lyrate-pinnatifid ; the upper commonly 

 only pinnatifid-incised, sessile : racemes lax, at length elongated : pedicels spreading or 

 nodding, especially in fruit, 4 to 7 lines or more long : corolla deep blue with yellow base, 

 from half to three quarters inch in diameter ; the lobes somewhat erose-denticulate : calyx- 

 lobes lax or spreading, linear or somewhat lanceolate, occasionally becoming spatulate or 

 obovate, sometimes twice the length of the rather thin-walled capsule. Proc. Am. Acad. 

 x. 321. Eutoca patuliflora, iMigelm. & Gray, PI. Lindh. i. 45. Phacelia hispida, Buckley in 

 Proc. Acad. Philad. 1831, 403. Low prairies and thickets, Texas along and near the 

 coast, Berlandier, Lindheimer, Wrijht, Buckley, &c. Capsule 2 lines long : placentae at 

 length deciduous : seeds apparently as in the next. 



P. strictiflora, Gray, 1. c. Shorter and stouter than the preceding, more cinereous-hir- 

 sute : leaves rather more pinnatifid (an inch or so long) : racemes in fruit strict and mostly 

 dense, with pedicels erect and not longer than the capsule : corolla similar or rather larger : 

 calyx-lobes usually becoming spatulate : capsule firm-coriaceous (3 lines long) : seeds 

 round-oval, minutely alveolate-reticulated and coarsely more or less tuberculate-rugose ! 

 Eutoca strictiflora, Engelm. & Gray, 1. c. Sand-hills, San Felipe and Austin, Texas, Drum- 

 mond, Lindheimer, E. Hall. Also Mississippi, Spillman. Perhaps a variety of the last, 

 growing in more exposed soil. Capsule of firmer texture ; the placentae inclined to be 

 adnate. In the seeds alone there is some approach to the character of the Microgeru tes 

 section. 



4. GYMXOBYTHUS, Gray. Ovules and seeds very numerous on the dilated 

 placentas, descending or nearly horizontal ; the testa favose-pitted : appendages of 

 the rotate-campanulate corolla wholly absent : capsule ovate and pointed : style 

 2-parted : very glandular and viscid California!! annuals, with ovate dentate leaves, 

 simple or sometimes geminate loose racemes, and very slender filaments (usually 

 a little bearded at base) about the length of the corolla. Proc. Am. Acad. 

 x. 321. Cosmanthus Gymnobythus, A. DC. 



P. Viscida, Torr. A foot or two high, branching, hirsute at base, very glandular above : 

 leaves ovate or obscurely cordate, doubly or incisely and irregularly dentate (an inch or 

 two long) : corolla deep blue with purple or whitish centre, from half to nearly an inch in 

 diameter. Bot. Mex. Bound. 143; Gray, I.e. & Bot. Calif, i. 513. Eutoca viscida, Benth. 

 in Bot. Reg. t. 1808 ; Bot. Mag. t. 3572. Cosmanthus viscidus, A.DC. 1. c. 296. Open soil, 

 along the coast of California, from Santa Barbara southward. Calyx-lobes linear or be- 

 coming obscurely spatulate, about the length of the abruptly cuspidate-pointed capsule ; 

 the firm placentae of which persist on the valves. 



Var. albiflora, Gray, 1. c., differs only in its white corolla. Eutoca albiflora, Nutt. 

 PI. Gamb. 158. Same range. 



P. grandifl6ra, Gray, 1. c. Very like the preceding, or disposed to be more hispid and 

 robust : corolla purplish or white, an inch to an inch and a half iu diameter. Eutoca 



