47 



loaded in their whole length with alternate branchlets which 

 have alternately arising ramelli or lacinulae. Lacinulae 

 appear like marginal teeth, remain simple, bifid or trifid and 

 end in sharpish apices. The shorter lacinulae or ramelli 

 appear like teeth as just spoken of, but when elongated 

 they develope into ramuli which have teeth-like ramelli or 

 lacinulae in turn. Plant attains 4-6 cm. in height with the 

 breadth of about 0.3-0.7 mm. in segments. Tetrasptires 

 regularly arranged in double rows in ramuli, roundish. 

 Colour red. Substance membranous and the plant does not 

 adhere to paper in drying. 



A close affinity of the present plant with Mfarocladia 

 clega/is Okam. (Vol. I, p. 1-4, PL. I, fig. 1-10) is beyond any 

 doubt. The difference between the two related plants is 

 found in the absence of dichotomo-flabellate pinnae in the 

 present plant. 



PL. CLXII, fig. 4-9. Fig. 4: sterile frond of Micro- 

 cladia ilciihitii Okam., -}. Fig. 5: branch, \. Fig. 6: cross- 

 section of frond ; a, axial cell; J p. Fig. 7: rootfibres (the 

 figure ought to be inverted), **. Fig. S : apices of branches, 

 :l i : V Fig. 9 : marginal lacinulae, 3 * 3 . 



f 

 Microcladia dentata Okam. ::: $r M 



L t c 3 *. /- i*] 4-J- m- 



%l CLXII m Hi, 4- H. 



* Microcladh ; ft H - ?P r. 



