REVISION OF TECTAUIA, 
1736; Mindanao (Cuming 290); Camp Koithley, Clemrm 100, 251; 
Davao, (7ope/an(i n',), 1167. TJie lierbarium of the Bureau of Scieuue 
has two unnnnibered specimens of Cuming's eolkH-lIoii, laLfleJ Sugcnia 
platyphylla J, Sni. According to Christonson (Tndox p. G14) this is 
A. cicutammi; but he (1. c. p. 87) interiu'ds A, platyphi/Jlum Prosl 
which Presl says = S, platyphylla J. Sm. as A. repamhtw Willd., wliich 
is my judgment as well. Elmer No. 7060, from Levto, is also tliis spooios, 
in my judgment; it lias (lie anc-eslral form of tlic genus Ifcmiyiamma, 
Christ, 
This is a reasonably variable fern, in form, margin, and iufhisia; but 
the chief difficulty in treating it is not natural, but due to the juni]>le of 
names in use. Willdonow published the name rppnnrfnm witli the av(»wii[ 
that Cavanilles' description would fit bis ])lant except that tiu' hiUer 
stated the pinnae to be alterruile. Tliey are indeed rather more often 
opposite, but by no means constantly so. The indusia are peltate and 
renifonn on the same plants. The manner in whidi tins species has 
been shifted between Sagrnia and Tedaria ilhistrates the futility of trying 
to maintain in this group genera based on the indusium. Tbc fertile 
fronds are sometimes like the sterile, but usually somewhat contracted 
(Cf. Sp. Fil. 4; 57) ; in view of this fact, I doubt the propriety of 
maintaining persoriferum as a separate species. Cavanilles says "Jrnc- 
tibns ?iume?'osissimis. 
ff 
10. Tectaria ambigua (Presl) Copel. nom. nov. 
Digrammaria Presl, Tent. Pterid, 117, 1836. Aspidlnm profcrroidcs 
Christ, Phil. Journ. Sc. 2 C. (1907) 158. 
Davao, Copeland 1467 A. This is a very distinct species whose 
venation and texture, and sparsely hairy sinuses and contracted fertile 
fronds strongly suggest Stenosemia. It is related to T. glgantpu 
(Blume). 
11. Tectaria calcarea (J. Sm.) Copel. nom. nov. 
Sagenia J. Sm., Journ, Bot. 3 (1841) 410. A^pidivm Prosl. Epim. 
Bot. 63. Mett. Aspidium 283. 
Leyte, Cuming 310. 
A very peculiar plant known only from Cuming*^ collection. Mot- 
tenius gives an excellent figure (1. c. Plate XVII;. Some of the indusia 
are peltate, others not so. 
12. Tectaria devexa (Kze.) Copol. nom. nov. 
Aspidium Kze. Bot. Zeit. (1848) ; 250. A. memhmnnmim Hook. Sp. 
Fil. 6; 105. 
Cuming s. n.; Mindanao, Davao, Copeland 808. 
This is certainly^, mcwhranarpuw Hook.; I have foIlowecJ Christensen 
in taking Kunze's name. 
