1676 CRYPTOGAMIA. FILICES. 1869. Acroftichum. 



ORDER I. FILICES. 



1869. ACROSTICHUM. Fructification covering the whole 

 under furface of the frond: involucre o. 



A . Frond undivided. 

 citrifolium. Fronds lance-ovate, veined, nearly fe (file: (hoot rooting. 



Plum. fil. tab. 116. 

 longifolium Fronds linear lanceolate, margined; the fertile- ones fpj- 



ral.y convolute. Plum fil. tab. 135. 

 latifolium. Fronds margined, barren ones broad lanceolate; fertile- 

 ones ovate-lanceoiate. Swartz. ind. occ. 

 fimplex. Barren-fronds lanceolate, pointed; fertile-ones linear lancep- 



lhte. Swartz. ind. occ. 

 petialatum. Barren-fronds linear-lanceolate, with a fcaly rib; (talk 



fcaly; fertile-ones linear. Swartz* ind. occ 

 Lingua. Frond 8 oblong, obtufe, ferruginou.s-downy underneath. 



(hoot rooting. Thunb Jap. tab. 33. 

 viUofum. Fronds broad- lanceolate, (lightly crenulate, villous both 



(ides. Plum. p. tab- 127. D. 

 hirtum Fronds oblong-lanceolate, pointed both ways, above and the 



(talks chaffy- hairy; the margin crenulate and dotted; fertile-opes 



ovate-lanceolate. Swartz. ind. 

 muscosum. Frond's fcaly ; barren-ones ovate-lanceolate, obtufe; 



fertile-ones ovate-lanceolate. Plum. fil. t. 1 39. 

 squamofum. Fronds-linear-lanceolate, both furfaces and (Talks chaffy- 



fcaiy; the chaff ciliate. Swartz. 

 crinitum. Fronds broad- ovate, obtufe, rough-haired, bearded aboy«. 



Plum.fiL tab. 125. 

 heterophyllum. Barren-fronds roundifh, fertile-ones linear. 



Rheed, Mai 12. tab, 29. 



B. Frond divided, 



pelt at um. Fronds diftincl: barren-ones dichotomoufly radiate at top, 

 with linear fegments; fertile-ones kidney-form, crenulate. 

 Plum, fit tab. 50 A. 



hiforme Fronds linear-forked, pendulous; barren- fegments linear, 

 fertile-ones kidney-forrfi, entire; the primordial-one large, ere&j 

 oblong, (lightly lobed. Mull naturfi t. 3* 



alcicorne. Fronds palmate, erect; divifions forked, lanceolate, ob- 

 tufe, fruiting towards the tips; primordial-ones kidney- form, 

 lobed, veined. Pluk. Aim t. 429./! 2. 



C. Frond pinnate* 

 quenifolium. Fronds diflindt, ternate: terminal leafets cf the barren- 

 ones ovate, cut, lateral-ohes 3-lobed; leafets of the fertile-ones 

 linear, (lightly repand. Jacq* coll. 3. tab* 2o-f. 3. 



