Phacelia. HYDRO PHYLLACEyE. 163 



the spreading filiform pedicels lonj;cr than the fruiting calyx : corolla light blue or nearly 

 white, 4 to (> 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. 

 (Pluk. t. 245, fig. 5.) Polcmonium dubiuin, L. Eutoca parcijiora, R. Br. in Richards. App. 

 Frankl. Journ. oG ; Bentli. 1. c. Cusmanthus parvijiorus, A.DC. 1. c. Phacelia pusllla, 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. L c. 

 P. hirsuta, Nutt. 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, 

 Canhj. Well developed capsule 2 lines long. Ovftles 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 

 laniellai approximate in pairs between 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 lyrato-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 hi diameter ; the lobes somewhat erose-donticulate : 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. Eidoca patuliflora, Engelm. & Gray, PI. Lindh. i. 45. Phacelia hispida, Buckley in 

 Proc. Acad. Philad. 1801, 4G:5. — Low prairies and thickets, Texas along and near the 

 coast, Berlandier, Liiidheiuvr, Wrijht, B'trkkij, &c. Capsule 21 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 fii-m-coriaceous (3 lines long) : seeds 

 round-oval, minutely alveolate-reticulated and coarselj^ more or less tuberculato-rugose ! — 

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

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

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

 adnatc. In the seeds alone there is some approach to the character of the Microgenet.es 

 section. 



§ 4. Gy.mnobythus, Gray. Ovules and seeds very numerous on the dilated 

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

 the x'otate-campanulate corolla wholly absent : capsule ovate and pointed : style 

 2-parted: very glandular and viscid Californian 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. c. & 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. graild.ifl6ra, Gray, 1. c. Very like the preceding, or dispo.sed to be more hispid and 

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



