o30 scROPnuLARiACE-^. (figwort family.) 



20. CASTILLEIA, Mutis. Paintf.d-Ccp. 



Calyx tulmlar, flnttciicd, deft af tlic summit on tlic anterior, and usnally on 

 tlio jiostcriur side also ; tiie divisions entire or 2-lol)cd. Tube of tiie corolla in- 

 cluded ill the cal^x ; its ujipcr lij) long aiul narrow, arched and keeled, flattened 

 laterally, enclosing the 4 unequal stamens ; the lower lip short, 3-lobed. Anther- 

 cells oblong-linear, imequal, the outer fixed by the middle, the inner pendulous. 

 I'od miiny-bceded. — Herbs (root-parasitic), with alternate entire f)r cnt-lobcd 

 leaves; the floral ones usnally dilated, colored, and more showy than the yel- 

 low or pui-plish s])iked flowers. (Dedicated to Casti/lrjo, a Spanish botanist.) 



1. C. COCCinea, Spreng. (Sc.vklet Painted-Cup.) Hairy biennial or 

 annual; stem sim])lc; root-leaves clustered; tho.sc of the stem incised; the floral 

 .3-cleft, hn'i/ht scarict towards the summit (rarely yellow) ; ca/i/.r u/mosl crjunlli/ 2- 

 rlef'/, the lolws tikiiIij entire, about the length of the \y.\]c yellow corolla. ( Euchroma 

 coccinca, .iY»/r) — Sandy low grounds: not unconunon. May -Aug. 



2. C. pallida, Knnth. Smooth or sparingly hairy perennial ; at the sum- 

 mit woolly ; leaves often incised ; the floral oblong or obovate, whitish, rarely 

 tinged with purple; cahj.r clefl more deeply in front, the divisions 2-cleJ}, the ovate- 

 oblong lobes mostly shorter than the whitish corolla. (C. sei)tentrionalis, 

 fjndl.) — Alpine region of the White Mountains, New Hampshire, and Green 

 Mountains, Vermont, Lake Superior and northwestward. Aug. (En.) 



3. C. sessiliflbra, Pursh. Hairy and low perennial (6' -9' high) ; leaves 

 mostly 3-clcft, with narrow diverging lobes ; the floral broader, not colored: spike 

 many-flowered, crowded ; calyx deeper cleft in front, the divisions dee/ily 2-de/l', 

 shorter than the tube of the long and narrow greenish-yellow corolla; which 

 has the lol>es of the lower lip slender, pointed, about half the length of the upper. 

 — I'rairies, Wisconsin [Lapham), Illinois, and westward. — Corolla 2' long. 



21. SCHWALBEA, Gronov. Chaff-seed. 



Calyx oblique, tubular, 10- 12-ribbcd, 5-toothed ; the posterior tooth much 

 smallest, the 2 anterior united much higher than the others. Upper lip of the 

 corolla acthcd, oblong, entire ; the lower rather shorter, erect, 2-plaitcd, with 3 

 very short and broad obtuse lobes. Stamens 4, included in the ui)per lip : an- 

 thcr-cclls equal and parallel, obscurely pointed at the base. Pod ovate, many- 

 seeded. Seeds linear, with a loose chafl-like coat. — A perennial minutely pu- 

 bescent upright herb (lo-2° high), with leafy simple stems, terminated by a 

 loose spike of rather large dull purplish-yellow flowers ; the leaves alternate, 

 sessile, 3-nerved, entire, ovate or oblong, the upper gradually reduced into nar- 

 row bracts. Pedicels very short, with 2 bractlets under the calyx. (Dedicated 

 to C. G. Schwalbe, an obscure German botanist.) 



1. S. Americana, L. — Wet sandy soil, Cajie Cod at Sandwich (B. D. 

 Greene), near Albany, New York, pine barrens of IS'cw Jersey, and southward 

 ntS&r the coast. May -July. 



22. EUPHRASIA, Tourn. Evebright. 



Calyx tubular or bell-shaped, 4-cleft. Upper lip of the corolla erect, scarcely 

 arched, 2-lobed, the lobes broad and spreading; lower lip spreading, 3-cleft, the 



