^42 BOTANY OF THE VOYAGE OF H.M.S. HERALD. 
I originally considered the preceding three species as belonging to my genus matyloma, ^ith which 
they agree in the character of the sori ; but on revising the gemis I find them to differ so much in liabit 
and mode of growth from true matyhma (P. Broxvnii, P.fahata, P. rohmdlfoUa), that I deem it best to 
separate them, and adopt Link's genus JPell<Ba, to which also is referred Uteris atropurpurea, Linn, P has- 
tata and Calomelanos, Sw, and P. geranifoUa, Eaddi, thus forming a very natural genus. 
677. Adiantum Ccqnllus- Veneris, Linn., AVilld. L c. p. 449.-Hook. 1. c. p. 36.-^. tenerum, 
vax. dtssectum, Mart, et Gal. 1. c. p. 71. Near Tacubaga, on a brook (Schaffner !) Very univer- 
sally diffused throughout both hemispheres. 
678 Adiantum lohatum, Presl, KeHq. Ha^nk. p. 62. t. 10. f. 3._Hook. Spec. FiL vol. ii. p. 10. 
. Sierra Madre (n. 19 i7). ^ 
679 Adiantum patens, Willd. Sp. Plant, vol. v. p. 439.-Hook. Sp. Fil. vol. ii. p. 29. t. 87 A. 
Sierra Madre (n. 194.9) ; Cerro de Pinal. 
680. ADI4N-TUM conchmmn, Humb. Nov. Gen. et Sp. Am. t. 668.-Willd. 1. c. p. 451.~Hook 
1. c. vol. 11. p, 42.-^. affine, Mart, et Gal. 1. c. p. 70. Sierra Madre (n. 1946) . 
45. To JraLTSa '^'^''■' ^'"'- " '■ '■ ""'-' '"'"'"'''^'' ^'-'- ^°-^- "'-''- ^ 
682. Blecunum occidentals Linn Willd 1 o « A^o d t-T • r, , , ^., 
bupra, p. 23o. Tcpic (Lay and Collie !J. 
_ 683. -VVoonw..Ri,iA ruc!!cans, Sw., Willd. 1. c. p. 418.-Hook. Gen. KI. t. 17. Sierra Madre 
m ravmes („. 1929) . Tepie (Lay and CoUie !) ; Nepal, California, Mexieo. 
684. Neottoptekis nidus, J. Sm. in Hook. Gen. Fil. t. 113 B.— Fee Gen Fil n 20S Tl,„m 
685. A.P.Exz« subulatun., Hook, et Am. Bot. Beech, p. 312. t. 71. Tepie (Lay and Collie I) 
near Z,^;iZ:;^'-' "^''•' ™ ' '^ ' ^^^-^-- ^* ^^' ^ «• P' ^^- ^^^ -ds 
TaeuCi Beln ^I'^i't ''"" ' ''^- ^' ^^^ ' '^ ' ''^ ^"^ ''"' """'^ '^ 
Near Belen, Santa Fe (Setwj ' (-te) .-P%..™«..™ .aolU, Knnze, Anal. Pterid. p. 41. t. 27. 
689. Lastrea patens, Presl Pterif! n 7f^ a • j- 
A. nyr.,UaU, Sehk.f. On tl. bank the l^^i^ZlT', '^'^ Tf ,' ' '^ '^ '^' ^^"^ ^^"• 
generally distributed tl.ron,l.out the West Indt and ^LTLI^^^^ '^^^" *''='^""'^^'^- '^^'^ 
690. Last«k.v «r^«/a, J. Smith, supra, p. 238. Sierra Madre (n. 1948) . 
691. Nkpiirolepis .ooaltata, Scliott, Gen. Fil. t. 3.-J. Sm Gen Fil I e 4 ■ i- 
Wdld. 1. e. p. 229. Tepio (Lay and Collie 1) ; West Indies and ir^JL 11^-^^^^^^^ 
