TAB. XXIII. 
Aspidium (Lastrea) Klotzschii, Hook. 
Humile caespitosum, frondibus digitalibus et ultra deltoideo- 
ovatis acuminatis subcoriaceis glabris, pinnulis oblongo-ovatis 
basi oblique cuneatis pinnatifidis, laciniis ovatis subspinuloso- 
acutis simplicibus vel inciso-dentatis, soris in singulo lobo 
solitariis reniformi-orbicularibus membranaceis fuscis, stipi- 
tibus gracilibus frondes superantibus inferne squamosis, 
squamis subulatis patentibus intense fuscis. 
Polystichum aspidioideum, Klotzsch , in Herb . Nostr. 
Hab. South Brazil, Selloiv . 
Our specimen of this Fern is from Dr. Klotzsch of the 
Royal Berlin Herbarium, with his name attached ; but I am 
ignorant whether the species be any where published or not. 
Finding the involucre to be reniform, and not orbicular and 
peltate, as in Polystichum , I venture to place it in the Lastrea 
group of Aspidium , or, according to the views of M. Fee, so 
unsettled is the nomenclature of the genera of Ferns, in 
Aspidium proper. It has, however, unquestionably, very 
much the general aspect of Polystichum , the texture of the 
frond being firm and somewhat coriaceous and glossy, and the 
teeth and lobules of the pinnules almost spinulose. It appears 
to be a distinct species from any hitherto described. 
Fig . 1. Upper side of a fertile pinnule, f. 2. Under side 
of ditto, with fructifications. — magnified. 
