62 CRUCIFER^. (mustard FAMILY.) 



aciitclff margined, nij^osc-rcticulatcd ; nril loose : otliciwisc as in the next. — 

 rcnnsylvaiiia to Wi.sconsin and southward. 



3. C. atirea, Willd. (Golden C.) Sttms low or dKcumhut; racemes 

 simple; corolln (joldin-i/fHoiv, i' Ion;;; slightly decurvcd sjntr somewhat shorter 

 than the pedicel, not half the len-jth of the rest of the tiower; tips of outer pi tah 

 blunt, cresllfss and naked on the back, little lonj,^cr than the inner ; pods usually 

 pendent; seeds smooth and even, or sometimes very minutely reticulated, tonjid, 

 mnrqinlrss, partly covered hy the scale-shaped aril. — Kocky places, Vermont to 

 Penn., Wisconsin, and northward. April -July. — Var. micrAntiia, Engelm., 

 is a state with minute spurless flowers (probably fertilizcil in the bud), and 

 ascending pods, on very short pedicels. — W. Illinois and St. Louis, Ilittil. 



(C. mo.\t.\na, Engclm., or perhaps rather C. auuka, var. occidentalis, 

 Engelm., Missouri to Texas and westward, dift'ers from the Eastern C. aurea in 

 the often ascending spur nearly equalling the rest of the dorolla and longer than 

 the pedicel, erect or ascending pods, and seeds lenticular with acutish margin. 



— C. cuKVisf LiQUA, Engehn., of Southwest, differs from this in longer 4-an- 

 gular pods ascending on very short pedicels, the acute-margined seed mnriaite! 



— C. crystAllina, Engclm., of Southwest, differs from this in the very broad 

 but short wing on tip of outer petals, short few-seeded pod covered with crys- 

 talline vesicles, and sharper- margined tubercular-reticulated seeds.) 



4. FUMARIA, L. Fl-mitory. 



Corolla 1 -spurred at the base. Style deciduous. Fruit indchisccnt, small, 

 globular, 1 -seeded. Seeds crcstlcss. — Branched and leafy-stemmed annuals, 

 Avith finely dissected compound leaves, and small flowers in dense racemes or 

 spikes. (>.'ame fromy«/««s, smoke.) 



1. P. officixXlis, L. (Commox Fumitory.) Sepals ovate-lanecolatc^, 

 acute, sharply toothed, narrower and shorter than the corolla (which is flesh- 

 color tipped with crimson); fruit slightly notched. — Waste places, about 

 dwellings. (Adv. from Eu.) 



Order 10. CRUCIFERJE. (Mustard Family.) 



Herbs, with a pungent icatery juice and cruciform tetrad ijnamous flowers: 

 fruit a silique or silicic. — Sepals 4, deciduous. Petals 4, hypogynous, 

 regular, placed opposite each other in pairs, their spreading limbs form- 

 ing a cross. Stamens G, two of them inserted lower down and shorter 

 (rarely only 4 or 2). Pod 2-celled by a thin partition stretched between 

 the two marginal placenta?, from which when ripe tiie valves separate, 

 either much longer than broad (a sili(jue), or short (a silicic or pouch), 

 sometimes indehlscent and nut-like (jiucumenlaceous), or separating across 

 into 1-seeded joints (lojnentaccous). Seeds eampylotropous, without albu- 

 men, fdled by the large embryo, which is curved or folded in various 

 wavs : i. e. the cotyledons accumbent, viz. their margins on one side aj)- 

 plied to the radicle, so that the cross-section of the seed appears thus oQ ; 



