CEUCIFERAB (MUSTAED FAMILY) 



425 



'ipte-clasping ; broadly winged pod 1.2 cm. in diameter, deeply notched at 

 top ; style minute. — Waste places ; not compion, except along our northern 

 borders, where too abundant and called "Frbnchweed." (Nat. from Eu.) 

 Fig. 741. 



2. T. PEEFOLiAinM L. Leaves sessile, the upper subperfoliate ; pod 

 smaller (5 mm. broad). — Reported as occurring near Hamilton, Ont. (Adv 

 from Eu.) 



7. LEPfDIUM [Toum.] L. Pbpperwort. Peppergeass 



Pod roundish, much flattened contrary to the narrow partition ; valves boat- 

 shaped. Seeds solitary in each cell, pendulous. Cotyledons incumbent, or in 

 no. 1 accumbenti Flowers small, white or greenish. (Name from XeTldion, a 

 little scale, alluding to the fruit.) — Ours are annuals or biennials, except the 

 iast. 



* Leaves all with a tapering base, the upper linear or lanceolate and entire, the 

 lower and often the middle ones incised or pinnatifid. 



*- Stamens 2 ; pods orbicular or oval, slightly notched at top ; style minute or 

 none ; fruiting pedicels slender, widely spreading ; plant green. 



1. L. virginicum L. 



T42. L. virginicum. 

 Leaves and tip of raceme x 2/3. 

 Septum, pod, and petal x 2%. 

 Cross-section of seed x 4. 



(Wild Peppeegrass.) Cotyledons accumbent and 

 seed minutely margined ; pod marginless or 

 obscurely margined at the top ; petals present, 

 except in some of the later 

 flowers. — A common weed 

 of roadsides and waste 

 places. June-Sept. Fig. 

 742. 



2. L. APi;TALUM Willd. 

 Nearly scentless ; leaves 

 toothed or pinnatifid ; coty- 

 ledons incumbent as in the 

 following ; pod orbicular, 

 minutely wing-margined at 

 the top ; petals usually want- 

 ing. (L. intermedium Man. 748. L. apetalum. 

 ed. 6.) — Dry places, espe- Leaf and tip of raceme 

 cially roadsides, by rail- x Vs- 

 roads, etc., perhaps native Pod x 2%. 

 in the West, recently introd. Cross-section of seed 

 eastw. (Eurasia.) Fig. ^*- 

 743. 



3. L. ruderXle L. Very fetid; lower leaves 

 bipinnatifid ; the smaller and oval pods and seeds 

 marginless ; petals none. — Roadsides and waste 

 places, chiefly near Atlantic ports. (Nat. from Eu.) 

 Fig. 744. 



*- ■*- Stamens 6; pods ovate, winged; 

 slyle more evident in deeper notch ; 

 pedicels thickish, compressed, as- 

 cending ; plant very glaucous. 



744. L. mderale. 

 Leaf and tip of raceme x'/,. 

 Pod X 2%. 



Croi3s-8ection of seed x 4, 



4. L. SATIVUM L. (Garden Cress.) 

 Glabrous annual (3 dm. high) ; lower 

 leaves bipinnatifid ; racemes long and 

 stiff ; petals present. — Common salad 



plant, tending to escape from cultivation, (Jntrod- from Evj.) 



FiQ, 745, 



745. L. sativum 

 Partof fruil'nf 

 racemo X '' ', 



