278 de Fr aine . — The Morphology and Anatomy of the 
C 
Text-fig. 27. Detail of part of xylem in root of S. bellidifolici. c. = cambium ; par. = wood 
parenchyma ; v. — vessel, x 290. 
Text-fig. 28. Transverse section of the stem of S. bellidifolia. x 40. p. = pith ; xy. = secondary 
xylem ; ph. = secondary phloem ; m r. = medullary ray ; l.l. — leaf- trace ; scl. = sclereide group ; 
a.co . = aerating cortex ; per. = periderm. 
of periderm is very wide- In the nature and proportion of the stereome 
present, the stem approximates very closely to the stem of the plants of 
binervosa cultivated from seed (cf. Text-fig. 28 and Text-fig. 14, E) ; indeed 
