Appendix. 
While I have been reading the proofs Prof. Rosenstock has kindly sent me 
some pinne of three species recently described by him, viz. 
Dryopteris Tamandarei Ros. Hedwigia 56: 365. 1915. — S. Brazil: Sao Paulo, 
l. TamANDARE et A. C. BrapeE no. 6534. A very critical form, much resembling 
large forms of D. rivularioides, but very sparsely pubescent and the sori ex- 
indusiate. 
Dryopteris janeirensis Ros. |. c. 367. — Brazil: Rio de Janeiro, Serra do Itatiaya, 
I. TAMANDARE et Brabe no. 6462. — This is no doubt quite distinct from all 
other S. Brazilian species of § Lastrea, but it comes very near to D. rudis or 
to the more glabrous ‘D. nervosa. I have seen specimens of this species before, 
f. inst. GLaziou no. 5263 (H), but my material being too incomplete I have 
not described it. 
Dryopteris laetevirens Ros. |. c. 368. — Brazil: S. Catharina, LOpERWALDT no. 
1380. — This-can with approximative certainty be referred to D. submarginalis 
as a less scaly form. 
