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 about Iialfvvay to  the midrib  into subtriangular, falcate,  acute lobes, the lowest not  
 smaller  th a n   the  n ex t  pair ;  texture  subcoriaceous  ;  racMs  and  both  surtaces  
 naked  ;  veins  pinnate  in  the  lobes,  with  G-10  veinlets  on  a  side  ;  so n   in  rows  
 ap a rt from the midrib.—N.  augescens,  F'ee.  H k .  Sp. 4. p.  79. 
 Hab.  West  Indies.—According  to  Grisebach,  this  is  the  Serra  of  Swartz.  I t  is  
 distinguished  by  its  very  narrow  rigid  pinnæ,  with  deep  sharp  lobes. 
 167.  N.  pallidivenium,  Baker  ;  S t .   1  ft.  or  more  1.,  stramineous,  naked  or  
 nearly  so ; f r .   2-3 ft. 1.,  8-12  in.  br.  ;  pinnæ 4-6  in.  1.,  |- 1   in.  br.,  cut two-tliirds  
 of  the way  dow»n  to  the  rachis  into  linear-oblong,  slightly  falcate lobes  ;  lower  
 pinnæ  not much  smaller th a n  the  rest  ;  texture coriaceous ;  under  surfaees naked  
 or  villose  ;  veinl&ts close, prominent,  12-16  on a  side,  the  small  sori in  close  rows  
 about midway  between the midrib  and  edge.—Polyp. Hh.  Sp.  5. p .  8. 
 Hab. Guinea Coast,  Vogel, Barter, Mann;  and gathered in the Livingstone Expedition  
 on the shores o{  Lake Nyassa.—Characterized  in  the  group  by  its  rigid  texture,  deep,  
 close  lobes, and  very numerous veinlets. 
 168.  N.  dissectum,  Desv.  ;  rhizmne  stout, wide-creeping ;  St.  1  ft.  or  more  I.,  
 stout,  brownish,  villose ; f r .   lJ -2   ft.  1.,  8-12  in.  br.  ;  pinnæ numerous,  4-6  in.  1.,  
 J  in.  br.,  cut  about  one-third  down  into  sharp,  trian g u la r,  falcate  lobes  ;  lower  
 pinnæ  distant  and  dwarfed;  texture  subcoriaceous;  rachis  and  under  surface  
 villose ;  vdns  pinnate  in  the  lobes,  with  6-8  veinlets  on  a  side  ;  sori  in  rows  
 close  to  the  midrib ;  caps,  setose.—Polyp.  Forst.  Asp.  Mett.  F il.  In d . p.  232.  
 A.  attenuatum, Sw. 
 Hab.  Common  in  the Polynesian  Islands.—Very like N.  euenllatum,  from which it is  
 distinguished by its setose  capsules and lower pinnæ not dwarfed. 
 169.  N.  procurrens.  Baker ;  st. 2  ft.  1.,  villose  above ; f r .   18  in.  1.,  10  in.  br.  ;  
 pinnæ  5-6  in.  1.,  cu t  down  to  a  narrow  wing  into  oblong,  obtuse  lobes,  the  
 lowest not muoh  shorter  th an   the  others  and  deflexed  ;  racliis  and  botli  surfaces  
 more  or  less villose  ;  texture herbaceous  ;  veinlets 5-6  on  a  side, with sori midway  
 between the midrib  and  edge.—Asp. Mett. F il.  In d . p .  231. 
 Hab.  Java.—Very like N.  molle, but  distinguished  by its creeping rhizome. 
 170.  N.  l o n g i p e s ,   Moore ;  S t .   3-4 ft.  1.,  livid ;  f r .   3  ft.  1.,  9-10  in.  br. ;  p i n n æ   
 6-6  in.  1.,  j  in.  br.,  cut  two-thirds  of  the way  down  into  oblique,  ra th e r  acute,  
 oblong  lobes,  with  a  distinct  sinus between  them  ;  t e x t u r e   subcoriaceous ;  upper  
 s u r f a c e   densely  h a iry   on  the  veins,  lower  less  so  ;  v d n s   8-10  on  a  side ;  s o r i   
 placed  midway  between  the  midrib  and  edge.—Aspid.  B l.  Mett.  F il.  In d .  
 p .   231. 
 Hab.  Java,—With this we are not acquainted. 
 **  Lower pinnoe  conspicuously reduced.  Sp.  171-176. 
 171.  N.  cucullatum,  Baker ;  S t .   1  ft.  1.,  strong,  erect,  brownish,  nearly  naked  ;  
 f r .   18-24 in.  1.,  8-12  in.  br.  ;  pinnæ  close,  4-6  in.  1.,  J   in.  hr.,  cu t  down  one-third  
 of  the way  to  the  raohis  into  triangular,  acute,  subfalcate  lobes ;  lower  pinnæ  
 dwindling  down  suddenly  into  mere  auricles  ;  texture  coriaceous ;  rachis  and  
 lower  surface  densely  pubescent  ;  veins  pinnate  in  the  lobes,  8-10  veinlets  on  a  
 sid e ;  sori  su b te rm in a l;  caps,  naked.—Aspid.  B l.  Mett. F il.  In d . p .  232.  N.  
 unitum,  Sieb.  H k .  Sp.  4. p .  81.  {in p a rt).  N.  canescens, Presl. 
 Hab. N.  India, Ceylon, Malaccas, Mascaren  Isle.s,  Fiji. 
 172.  N. Haenkeanum,  Pre sl  ;  st.  1-2  ft.  1.,  strong,  erect,  slightly pubescent ;  
 f r .   3-4  ft.  1.,  12-16  in.  br.  ;  pinnoe  6-8  in.  1.,  J   in  br.  ;  cut  from  one-third  to 
 halfway  down  into  acute  subfalcate  lobes  ;  texture  subcoriaceous ;  rachis  and  
 under  surface  finely pubescent ;  vemlets  10-12  on  a  side ;  sori  subterminal.—  
 A.  multilineatum,  Mett.  F il.  In d . p .  232.  {non  Wall.) 
 Hab.  Ceylon,  Malaya,  Fiji,—Much  larger  and  less  hairy  than  the  last,  with  more  
 numerous  veins,  and  a  very  fugacious  involucre.  A  plant  sent  from  Mauritius  by  
 Lady Barkly as N.  datum, Bojer,  is probably distinct.  I t has medial sori,  14-16 veinlets  
 on a side and fronds sometimes 2 feet broad. 
 173.  F .  muMjugum,  Baker ;  st.  1-2  ft.  1.,  strong,  erect,  subglabrous ;  f r .   3-4  
 ft. 1.,  12-15  in.  br. ;  pinnæ  6-8 in.  I.,  | - J   in.  br.,  cut  two-thirds  of the way  down  
 to the rachis  into  close,  acute,  subfalcate  lobes  J   in.  br.  ;  texture  subcoriaceous  ;  
 rachis  and  both  sides  nearly  naked  ;  vdnlets  10-12  on  a  side ;  sori  near  the  
 inidrib.—Aspidium,  Wallich. 
 Hab.  Malayan  Peninsula.—This  comes  very  near  the  last,  but  is  nearly  naked and  
 more deeply cut, with the íiori in a different position. 
 174.  N.  hirsutum,  J .   Sm.  ;  st.  1  ft.  or  more  1.,  grey,  villose  ;  f r .   3-4  ft.  1.,  
 I J   ft.  h r .;  pinnoe  very  close  and  numerous,  spreading,  the  largest  10  in.  1.,  
 j   in.  br.,  cut  down  halfway  to  the  rachis  into  entire,  linear-oblong,  subfalcate  
 lobes ;  the lower  ones  with  a gland  beneath  a t  the  base ;  texture subcoriaceous ;  
 rachis  densely  clotlied  with  soft  spreading  hairs  ;  under  surface  glandular ;  
 vdns 6-8 on  each side ;  sori medial.—/ f t .   Sp.  4. p .  70.  t.  240. B.  {not Don). 
 Hab. Philippines,  Cuming,  82.—Habit  of  the two last,  but the veins muoh fewer,  sori  
 medial,  and lower pinnæ with a large gland at the  base. 
 175.  F . aridum, Baker  ;  S t .   1 ft. or more  1., erect, naked ; f r .   3-4 ft. I.,  12-18 in.  
 br. ;  pinnæ 6-0  in.  1.,  f-1 in.  br.,  cut about  one-third  of  the way  down  into  subtriangular  
 sharp-pointed  lobes ;  texture  coriaceous  ;  rachis  and  lower  surface  
 naked  or  slightlv  hairy  ;  vemlets  8-10  on  a  side ;  sori  in  rows  about  midway  
 between  the  midrib  and  edge  ;  caps,  n a k e d .— Aspid. Don P rod.  F l. Nep. p .  4.  
 A.  venulosum,  Wall.  A.  obscurum,  B l. 
 Hah. F . India, Philippines, Malayan Peninsula.—This differs from the three preceding  
 by the under side being nearly or quite naked, and in tlie position  of the sori.  A. callosum,  
 Blume,  quite  agrees with this,  except that there is a large  prickle-like  gland at  the base  
 of the pinnæ,  and sometimes also of the veins. 
 176.  F .  v e n u l o s u m ,   I lk . ;  S t .   I J   ft.  1.,  naked,  greyish,  sharply  angled  ;  f r .   
 4 ft.  1.,  12-18  in.  br.  ;  p i n n oe   numerous,  the  lowest  short  and  very  distant,  the  
 largest 8-9 in,  1.,  1  in.  br.,  cut  down  halfway  to  the  rachis into  slightly-toothed  
 oblong  lobes  ;  t e x t u r e   subcoriaceous ;  both  s u r f a e e s   naked ;  c o l o u r   bright-green ;  
 v e i n s   about 9   on  each  side,  conspicuous  above, witb  a  sorus  on each midway to  
 the  edge.—H k .  Sp.  4. p.  71. 
 Hab.  Fernando Po.—A large  plant, most like N.  truncatum  in  habit and texture,  but  
 the rhizome creeping. 
 Kronds  large, pinnate ;  caudex  erect  or suherect.  Sp.  177-196. 
 f   Pinnm  entire or slightly  lohed,  so that most  ofthe veinlets  unite.  Sp,  177-184. 
 177.  N.  glandulosnm,  J .   Sm.  ;  st.  tufted,  1  ft.  or  more  1.,  naked  or  slightly  
 villose  ; / r .   1  foot  or  more L,  4-6  in.  hr.,  with  8 1 2   spreading  pinnm  on  each  
 side,  those  of  the  barren  fr.  the  largest  and  closest,  2-8 in.  i.,  |- 1   in.  br.,^  the  
 margin  entiie  or  slightly  lohed,  the  base  abruptly  truncate  and  sometimes  
 auricled;  texture  papyraceo-herbaceous;  rachis  and  under  surface  naked  or  
 slightly villose,  sometimes  g la n d u la r;  fertile  pinnm  contracted,  the main  veins  
 not  more  than  1  lin.  apart ;  veinlets  4-8  on  a  side,  with  the  sori  close  to  the  
 inidrib.—LIk.  Sp.  4. p .  76.  Abacopteris,  Fée. 
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