172

3.1

R.H.

173

1.______________2._____________

3.______________4._____________

174

B

175

176

177

178

179

180

181

182

183

184

i

ii

iii

Outline of Botany- R.V. Narayanasamy, K.N.Rao. and Dr. A. Raman - S.Viswanathan Printers and Publishers