WASTE PLACES, ETC. 



121 



vex, i -nerved, the cells i -seeded. The seeds 

 are winged. The plant is 4-12 in. high, flower- 

 ing from June to September, and is a herbaceous 

 perennial. 



Wart Cress (Sencbiera didyma, Pers. = 5. 

 pinnatifida, D.C.). The habitat of this plant is 

 waste places, as a rule near the sea. The habit is 

 spreading. The stem is prostrate, creeping, slightly 

 hairy, branched, leafy. The leaves are deeply 

 divided to the base, once or twice, with small seg- 

 ments, inversely ovate, spreading. The flowers 

 are in long, slender, loose racemes, with a leaf 

 opposite, small, white, with one on the internode 

 below, very often apetalous, or the petals may be 

 very short, and with 2 stamens. The style is very 

 small. The pods or silicules are kidney-shaped, 

 notched, the 2 lobes (hence didyma) wrinkled, on 

 slender, spreading stalks, the seed kidney-shaped, 

 dotted, finely-furrowed. The plant is 6 in. to i ft. 

 in height, flowering between June and September, 

 and is a herbaceous annual or biennial. 



Swine's Cress (Senebiera Coronopus, Poir. = 

 Coronopus -verrucarius, M. & T. = C. ruellii). 

 The habitat of this plant is waste ground. The 

 habit is prostrate. The stems are much-branched, 

 smooth. The leaves are larger than in the last, 

 less divided nearly to the base. The flowers are 

 small, white, in dense racemes, opposite the leaves. 

 The petals are perfect. The pods or silicules are un- 

 divided, kidney-shaped, on slender stalks, wrinkled, 

 crested with small sharp points. The style is pro- 

 minent, awl-like. The stamens are perfect. The 

 plant is 3-8 in. in height, flowering between June 

 and September, and is a herbaceous annual or 

 biennial. 



Cress (Lepidium sativum, L.). This plant is 

 always cultivated in this country, sometimes escap- 

 ing from, and then found as a casual near, gardens. 

 The plant is erect, with the rosette habit. The 

 stem is smooth, often bluish-green, the radical 

 leaves 1-2 pinnate, lobed, the upper stalkless, 

 linear, entire. The flowers are white. The pods 

 are round to oval, blunt. The seeds are triangular, 

 with the radicle in the narrow end, and with entire 

 cotyledons, with no endosperm. The plant is 6-18 

 in. in height, flowering from June to August, and 

 is a herbaceous annual. 



ORDER RESEDACE^E 



Wild Mignonette (Reseda alba, L.). This plant 

 is found in gardens, and as an escape in corners 

 where garden rubbish has been thrown out, near 

 the seashore, and by roadsides, or generally in 

 waste places. The habit is erect, being that of 

 an undershrub below. The leaves are pinnate, 

 divided, bluish-green, the segments entire, linear, 

 acute, wavy. The flowers are white, with 6 sepals, 

 which are linear to lance-shaped, divided, nearly 

 equal, 3-fid, the sepals being of the same number, 

 the stalks not so long as the latter. The fruit is 

 oblong, wrinkled. There are 4 stigmas as a rule. 

 The seeds are kidney-shaped, rough. The plant 

 is 1-2 ft. high, flowering in July and August, and 

 is a herbaceous biennial. 



ORDER CARYOPHYLLACE/E 



Silene dubia, Herbich. The habitat of this plant 

 is shingle, rocky places, and the plant is local. 

 The radical leaves are long-stalked, spoon-shaped, 

 acute, the upper leaves less hairy, narrower. The 

 flowers are white, the calyx narrower. It is a 

 more slender plant than 5. nutans, of which it has 

 been regarded as a variety. The plant is 1-2 ft. 

 in height, flowering in June and July, and is a 

 herbaceous perennial. 



Italian Catchfly (Silene italica, Pers.). Italian 

 Catchfly is found as an escape along roadsides. 

 The plant has the catchfly habit, being more or 

 less a rosette plant. It is downy, more or less 

 erect. The branches are 3-forked, sticky, opposite. 

 The radical leaves are lance-shaped, spoon-shaped, 

 the stem-leaves linear to lance-shaped. The pan- 

 icle is nearly erect, the flowers white, the calyx 

 club-shaped, with blunt teeth, the petals divided 

 into two nearly to the base, not crowned, with 

 broad segments. The carpophore is as long as 

 the capsule. The plant is 1-2 ft. high, flowering 

 in June and July, and is a herbaceous perennial. 



Silene Armeria, L. The habitat of this species 

 is waste places. The plant is erect, bluish-green, 

 sticky. The leaves are smooth. The panicle is 

 many-flowered, forked, the flowers rose-colour, 

 level -topped. The petals are notched, with a 

 double, awl-shaped scale. The calyx is smooth. 

 The capsule is club-shaped. The plant is 6-18 in. 

 high, flowering from July to September, and is a 

 herbaceous annual. 



Cucubalus baccifer, L. The habitat of this 

 species is waste places. The stem is branched, 

 spreading. The leaves are ovate, acute. The 

 flowers are white. The calyx is bell-shaped, the 

 petals distant. The fruit is fleshy. The plant is 

 i2 ft. in height, flowering in June and July, and 

 is a herbaceous perennial. 



Common Chickweed (Stellaria media, Vill. = 

 Alsine media, L.) The habitat of this plant is 

 gardens, fields, roadsides, cultivated and waste 

 ground. The plant is prostrate, then ascending. 

 The stem and branches have a hairy, alternate, 

 lateral line, serving to convey water downward. 

 The leaves are smooth, with broad leaf-stalks, 

 fringed with hairs, ovate, short-pointed, the lower 

 leaves stalked. The upper leaves are stalkless. 

 The flowers are numerous, white, in cymes, axil- 

 lary and terminal, the stalks longer than the calyx, 

 the sepals ovate to lance-shaped, glandular, hairy, 

 with a membranous border, smooth or with long 

 hairs, the petals divided into 2 to the base. The 

 fruit-stalks are wavy, bent-back, exceeding the 

 leaves or not. The stamens are 3, 5, or 10. The 

 seeds have round tubercles. The plant is 3-18 in. 

 high, flowering from February to October, and is 

 a herbaceous annual. 



ORDER PORTULACE^: 



Claytonia pcrfoliata, Donn. This p.ant has a 

 tufted habit. The stems are ascending, smooth, 

 fleshy, shiny, like the leaves. The radical leaves 



