. Field and woodland plants. % edged with red,and arranged in a denserosette; and the floweringstem, with its sessile leaves,is covered with a short, stickydown. The flowers are of adull pink or purple colour, andare sessile along the spread-ing branches of the have usually abouttwelve short sepals ; the samenumber of pointed petals,t^o or three times the lengthof the sepals ; about twice asmany stamens; and an ovaryof as many carpels as thereare petals and sepals. It isinteresting to note that halfthe stamens—those formingthe inner whorl—produce nopoUen, and that their anthersare of
. Field and woodland plants. % edged with red,and arranged in a denserosette; and the floweringstem, with its sessile leaves,is covered with a short, stickydown. The flowers are of adull pink or purple colour, andare sessile along the spread-ing branches of the have usually abouttwelve short sepals ; the samenumber of pointed petals,t^o or three times the lengthof the sepals ; about twice asmany stamens; and an ovaryof as many carpels as thereare petals and sepals. It isinteresting to note that halfthe stamens—those formingthe inner whorl—produce nopoUen, and that their anthersare often modified into ovaries, the ovules of \Ahich, however, donot mature. This plant flowers in July and August. Our last selection from this order is the Wall Pennywort orNavelwort {Cotyledon umbilicus)—a pecuhar plant, common onrocks and walls in the South and West of England. It has a hard Y 2. the london pride or st. patricksCabbage. 324 FIELD AND WOODLAND PLANTS stock, producing an abundance of fleshy leaves early in the year,and flowering stems, from six to eighteen inches high, from Juneto August. The lower leaves are round, wavy, smooth, verysucculent and brittle, and depressed in the centre where the longfleshy stalks are attached. Those of the stem have shorter stalkswhich are more and more removed from the centre from below upwards. Thestem is thick andsucculent, andbears a longraceme of pen-dulous 3ellow-green flowers onshort flower hasa very smallcalyx of fivesepals ; a cylin-drical corolla,about a quarterof an inch long,witli five shortteeth; ten sta-mens, attachedto the tube ofthe corolla; anda superior of theSaxifrages growin rocky andstony places, and four or five species are sufficiently common to demand a noticehere. The flowers of this group have a calyx of five sepals that iseither quite free or more or less adherent to the ovary ;
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