PTELIDIUM 



717 



PTERIS 



P. trtfolia'ta (three- leaved). 12. Green. June. N. 



Amer. 1704. " Hop Tree." 

 au'rea (golden). Leaves golden. 1886. 

 fastigia'ta (erect). Branches erect. 

 zlau'ca (sea-green). Foliage sea-green. 

 heterophy 'lla (various-leaved). 

 mo'llis (soft). 



variega'ta (vaiiegated-/w*). 12. Green. June. 

 1846. 



PTELIDIUM. (So named from its resemblance to 

 Ptelea. Nat. ord. Spindle-trees [Celastracea?]. Linn. 

 4-Tetrandria, i-Monogynia.) 



Stove evergreen shrub. Cuttings of young shoots in 

 sand, under a glass, in heat; sandy peat and fibrous 

 loam, with pieces of charcoal. Winter temp., 50 to 60 ; 

 summer, 60 to 85. 



P. ova' turn (egg-leaved). 6. Greenish-white. Madagascar. 

 1818. 



PTE RIS. Brake. (From p ttron, a wing ; the shape 

 of the fronds, or leaves. Nat. ord. Ferns [Filices], Linn. 

 24-Cryptogamia, i-Filices.) 



All brown-spored. See FERNS. 



HARDY. 

 P. aquili'na (eagle-like). 3. July. Cosmopolitan 



(Britain). 



cauda'ta (tailed). 2. October. N. Amer. 1777. 

 n conge'sta (crowded), i-ii- Fronds rich green, 



plumose, compact. 1909. 



,, s,la'bra (smooth). Fronds smooth. Europe. 

 ,, lanugino'sa (woolly). Fronds woolly. Europe. 

 ., \icholso' nii (Nicholson's). 3. Fronds very 



slender, graceful. New Zealand. 1908. 

 arge'ntea (silvery). \. July. Siberia. 1816. 

 a' tro-purpu' rea (purple). See PELL^A ATROPURPUREA. 

 cauda'ta (tailed). See P. AQUILINA CAUDATA. 



GREENHOUSE. 

 P. aquili'na escule'nta (eatable). 3. August. N.S- 



Wales. 1815. 



argu'ta (sharp-notched), i. August. Madeira. 1778. 

 Backe'ri (Backer's). Fronds strong, tufted, finely 



crested. 1904. 



colli'na (hill). See P. PALMATA COLLINA. 

 cre'tica (Cretan), i. July. Candia. 1820. 

 a'lbo-linea'ta (white-lined). Pinna with white 



midrib. 

 capita' 'to, (headed). Fronds tufted, compact, much 



crested. 1904. 

 ,, crispa'ta (crisped), i. Dwarf, compact. Pinnules 



crisped with white band. 1891. 

 crista'ta (crested). Pinnae crested. 

 Ma'yi (May's). 

 no'btlis (noble). Fronds erect, heavily crested and 



lobed at the apex. 

 ,, Summe'rsii (Summers's). An improvement upon 



P. cretica Wimsettii. 1898. 

 Wimse'ttii (Wimsett's). Pinnae irregularly and 



deeply lobed and crested. 

 ,, Wimse'ttii mu'lticeps (many-headed). Finely 



crested and cut. 1902. 



escule'nta (eatable). See P. AQUILINA ESCULENTA. 

 falca'ta (sickle-shaped). See PELL^EA FALCATA. 

 inci'sa (incised). 3-6. Trop. Amer. ; New Zealand ; 



S. Africa, &c. 1823. 

 i'ntra-margina'lis (within-margined). See PELI^EA 



INTRAMARGINALIS. 



kingia'na (King's). See P. TREMULA KINGIANA. 



latizo'na (broad- zoned). i$. June. Moreton Bay. 



1831. 



meta'llica (metallic), ij. Fronds thick, metallic- 

 looking. 1903. 



no'bilis (noble). See P. PALMATA NOBILIS. 

 palmti'ta (hand-shaped), i-if. Trop. Amer. to Peru 



and Rio Janeiro. 1821. (Doryopteris.) 

 ,, colli'na (hill). J-$. August. Brazil. Stove. 

 no'bilis (noble), if. Fronds bold and leathery. 



Stove. 

 ru^ulo'sa (slightly- wrinkled). 2-3. September. 



Society Islands ; Tasmania. 1844. 

 sciihe'rula (finely-rough). i-zJ. Fronds finely cut, 



three to four times. New Zealand. 

 serrula'ta (finely-sawed), ij-aj. China ; Japan ; 



Natal. 1770. 



P. serrula'ta angusta'ta (narrow). Pinnae narrow, crested 



at apices. 

 applcbya'na (Applebyan). Pinnae drooping, 



crested at tips. 



,, ,, compa'cta (compact), i. Fronds compact, arch- 

 in-.', heavily crested at apex. 1887. 

 ,, corymbi'fera (corymb-bearing). Fronds upright 



heavily tasselled at apex. 

 Cowa'ni (Cowan's), i. Dwarf, branched down to 



the stalks, heavily crested. 1883. 

 ,, ,, crista'ta (crested). Fronds and pinna? crested at 



the tips. Japan. 1863. 

 de'nsa (dense). Fronds short, dense. 

 gigantf'a (giant). 2j. Fronds very large. 1893. 

 glorio'sa (glorious). 



gra'cilis (slender). Pinnae narrow and slender. 

 Le'yi (Ley's), i Pinnae narrowed, elongated, 



thread-like. 1876. 

 ma'xima (largest). A large, strong-growing form. 

 ,, Ouvra'rdii (Ouvrard's). 

 polyda'ctyla (many-fingered). Frond and pinnae 



much fingered. 

 Rochfo'rdi (Rochford's). Robust and crested. 



1898. 



tenuifo'lia (slender-leaved). Pinna; narrow, slender. 

 undula'ta (waved). Pinnae waved. 

 subverticilla'ta (slightly-whorled). i. Mexico. 1831. 

 tre'mula (tremblmg). 3. July. Australia. 1820. 

 arge'ntea (silvery). Fronds pale green or grey. 



1900. 



e'legans (elegant). Pinnae narrow. 

 ,, gra'ndiceps (large-headed). Fronds much divided 



at apex. 1886. 

 kingia'na (Kingian). 2. June. Norfolk Island. 



1831. 

 smithia'na (Smithian). ij-2. Fronds divided 



to the base, much branched, and tasselled. 1889. 

 variega'ta (variegated). Fronds variegated. 1892. 

 umbro'sa (shady). 3. July. Australia. 1823. 

 corymbi'fera (corymb-bearing). Fronds finely 



crested. 1904. 

 ,, crista'ta (crested). 3. Segments crisped, much 



crested. 1879. 

 Drinkwa'teri (Drink water's). 2. Pinnae broad, 



dark green. 1896. 

 ,, graci'llima (very-graceful), ij. Fronds slender 



very elegant. 1904. 



STOVE. 



P. aculea'ta (prickly). 3-4. Trop. Amer. to Peru. 

 ,, Alexa'ndra (Queen Alexandra's), i. Fronds varie- 

 gated and crested. 1902. 



alloso'rus (Allosorus-like). See PELI^EA CORDATA. 

 a'mpla (large). 6. July. 



,, argyra'a. (silvery). See P. OUADRIAURITA ARGYR.SA. 

 ,, aspericau'lis (rough-stemmed). See P. QUADRI- 



AURITA ASPERICAULIS. 



Bau'sei (Bause's). See P. SEMIPINNATA BAUSEI. 



biauri'ta (two-eared). 2-3. Rather leathery. Tropics 

 of both Worlds. 1823. 



nemora'lis (grove). 3. Venation combined and 

 free in same frond. E. Ind. 



,, nemora'lis variega'ta (variegated). Fronds varie- 

 gated. 



Bino'ti (Binot's). i. Barren fronds three-lobed ; 

 fertile nine-lobed. Brazil. 1904. 



bratzaia'na (Brazzaian). 3. Pinnae oblong ; pinnules 

 rounded. Congo. 1903. 



calome'lanos (neat-dark). See PELL.EA CALOMELANOS. 



Cervantf'sii (Cervantes'), i. July. Mexico. 1824. 



chine" nsis (Chinese). 2. July. China. 1824. 



co'mans (hairy). 2-3. Polynesia ; New Zealand ; 

 Tasmania, &c. 1860. 



,, ,, undula'ta (wavy). Edges of pinnas wavy. 



corda'ta (heart-shaped). See PELL^EA CORDATA. 



,, cra'ssipes (thick-stalked). See P. GIGANTEA. 



crena'ta (notched). See P. ENSIFORMIS. 



crenula'ta (scolloped). 2. July. 1827. 



Curro'ri (Curror's). 3-4. W. Trop. Africa ; Fer- 

 nando Po. 



defte'xa (deflexed). 4-6. Trop. Amer. to Brazil and 

 Peru. 1844. 



denticula'ta (toothletted). 2-3. Trop. Amer. Re- 

 sembles P. cretica. 



di'scolor (two-coloured). 3. August. Brazil. 1825. 



