228 176 
224. Dryopteris macrotis (Hook.) O. Ktze. Rev. 2: 813. 1891; C. Chr. Ind. 276. 
Syn. Nephrodium macrotis Hook. spec. 4: 86 tab. 242 B. 1862. 
Type from Peru: Tarapoto, Spruce nr. 3979 (auth. specimens in RB and L.). 
The most developed form of a small group, which includes also the three 
preceding species, characterized by the strigose upper surface of the lamina to- 
mentose rachis and the reflexed lower pinne which like the upper ones are distinctly 
auricled at the upper base and setose indusia. D. macrotis differs from the three 
other species by its size; stipe and lamina 30—40 cm each, pinne 10—15 cm long 
by 1!/»—2 em broad, the lower 2—3 pairs much reflexed, both surfaces adpressedly 
strigose, rachis apparently without stellate hairs, in some specimens proliferous like 
several other species of Goniopteris; veins 5—6-jugate, very ascending, free and 
connivent or not reaching the sinus, the basal ones sometimes truly united. 
Rosenstock has named the forms with anastomosing veins var. nephrodioides in 
Fedde, Repert. 7: 298. 1909, based on Spruce nr. 4658 from Peru Mt. Campana 
(RB!); the same character is found in specimens of Spruce nr. 3979. 
\ 995. Dryopteris serrulata (Sw.) C. Chr. Ind. 292. 1905; Maxon, Contr. U. S. 
Nat. Herb. 10: 491. 1908. 
Syn. Polypodium serrulatum Sw. Schrad. Journ. 18002: 25. 1801; Fl. Ind. occ. 
1663. (C. Chr. Arkiv fór Bot. 9": 34 fig. 8 et t. 5 fig. 1; photograph 
of the type-specimen). 
Aspidium serrulatum Mett. Aspid. nr. 252. 1858. 
Nephrodium serrulatum Jenm. Bull. Dept. Jamaica II. 3: 189. 1896. 
? Polypodium Lunanianum Hew. Mag. Nat. Hist. IIl. 3: 460. 1838 
(t. JENMAN). 
? Polypodium Smithianum Hew. l. c. 459 (t. Mett. msc.). 
Type from Jamaica, leg. Swanrz (S!) 
A well-marked species, distinguished from related species by its pinnz being 
broadly serrate only, not pinnatifid, and its inframedial sori. The pinnze resemble 
in cutting those of D. pyramidala, from which it differs by its lower pinnz being 
reduced, by its sessile or subsessile pinne and by its few veins. The whole leaf 
is practically glabrous, the rachis and costz beneath alone slightly puberulous by 
minute stellate hairs. Most pinnz with truncate base, or the lower ones a little 
narrowed and often auricled. Lobes generally broader than long, often emarginate. 
Veins 4—5-jugate, the lower 3—4 curved up to the sinus and the basal pair nor- 
mally united and sending a branch to the sinus. Sori very often confined to the 
lower veins (still in some specimens all veins are soriferous), distinctly inframedial, 
often close to the costa. Indusium small, deciduous, furnished with a few furcate 
hairs. Sporangia glabrous. — Generally the lower 2—3 pairs of pinn: are gradu- 
ally shortened, but this is not the case in all specimens. The species varies con- 
siderably in size. The largest specimens measure: stipe 30—40 dem, lamina 8 dem, 
