OF SOUTH AUSTRALIA. 
307 
Fig. 146 . — Bostrychia Harveyi: a , plant; b, part 
of a branch; c, a ramulus; d, trans- 
verse section of stem. (After 
Harvey.) 
Bostrychia Harveyi Montagne. 
Fronds densely tufted, spreading in patches over sticks and straws 
accidentally submerged, 4 cm. to 5 cm. high, less than mm. thick, bi- 
tripinnated. The principal stem or branches are angularly flexuous or 
zigzag; all are dotted with minute surface cellules, and a cross-section 
shows them to be composed of several rows of hexagonal cells, each con- 
taining a bag of dark-purple endochrome. Pinnae alternate, variable in 
length, long and short intermixed, patent, once or twice compounded. The 
pinnules also vary in degree of composition; the lowest are often quite 
sample, those next in order bifid or trifid, and the uppermost frequently 
multifid or dichotomous. The apices are strongly inrolled. Colour deep 
purple; substance cartilaginous, not soft. 
Victoria (Sealers Cove, Yarra), Tasmania, New Zealand. 
