310 48. POLYPODIUM, § EUPHEGOPTERIS. 



P has nearly as wide a range as the type in Europe, and occurs also in the United 



35. P. (Pheg.) gUnduliferum, Liebm. ; St. tufted, 3-4 in. 1., slender, stra- 

 mineous ; fr. 6-8 in. 1., 3-4 in. br., lanceolate-deltoid ; lower prnnce the largest, 

 about 2 in. 1., 1 in. br., cut down to the rachis below into distinct unequal-sided 

 deeply-pinnatifid pinnl., with erecto-patent, linear-oblong, entire or slightly- 

 toothed lobes ; texture herbaceous ; rachis and both sides ' finely glandular ; 

 vdnlets immersed ; s,ori 1 at the base of each lobe. — Hk. Sp. 4. p. 262. 



Hab. Mexico, Zdeimann. 



36. P. (Pheg.) drepanum, Hk. ; st. tufted, 12-18 in. 1., with dark-coloured 

 ovate scales below ; fi: l|-3 ft. 1., 8-12 in. br. ; lowest pinnce the largest, 6-8 in. 

 1., 1^-2 in. br. ; pinnl. lanceolate, unequal-sided, auricled on the upper, truncate 

 on the lower side at the base, with a broad uncut centre and copious spinose 

 teeth, the lowest stalked ; texture coriaceous ; veins distinct ; both sides nearly 

 naked ; sori mediaL — JS&, Sp. 4. p. 249. 



Hab. Madeira. — This and the two next have entirely the habit of Polystichum. 



37. P. (Pheg.) platyphj/Uum, Hk. ; st. tufted, 12-18 in. 1., clothed towards the 

 base with ovate scales ; fr. 1-2 ft. 1., 4-12 in. br. ; lower pinnae the largest, 

 3-6 in. 1., 1^-2 in. br., with distinct close unequal-sided, subrhomboidal pinnl., 

 very obliquely truncate on the lower side at the base, the upper side auricled, 

 with the inner edge parallel with the stem, the central part uncut, the teeth 

 spinose ; texture subcoriaoeous ; rachises fibrillose ; both sides nearly naked ; 

 venation subflabellate ; sori small, principally in rows near the midrib. — Hi. Sp. 

 4. p. 248. 



Hab. Cuba and Guatemala to Brazil and Peru. 



38. P. (Pheg.) rigidum, Hk. & Gr. ; st. tufted, 6-18 in. 1., more or less scaly ; 

 fr. 1-3 ft. 1., 4-18 in. br. ; pinnce 2-9 in. 1., |-1^ in. br., with close unequal-sided 

 subrhomboidal pinnl. with copious aristate teeth ; texture coriaceous ; rachises 

 usually scaly ; venation subflabellate ; sori principally in rows near the midrib, 

 — P. rigidum and pycnolepis, Hk. Sp. 4. p. 246. 



Hab. Guatemala, along the Andes to Peru. — Very variable, the forms differing only 

 by the want of an involucre from the forms of A^id. acmleatum, to which it should pro- 

 bably be joined. There is a detailed account of the various forms in the " Species Filicum." 

 We include here three species of.Mettenius, — his rigida, cochleata, staA. pymiolepis. 



39. P. (Pheg.) Mannianum, Hk. ; st. tufted, 6-9 in. 1., glossy, stramineous, 

 with scattered lanceolate scales ; fr. nearly 1 ft. 1., 4-5 in. br., lanceolate ; lowest 

 pinnm the largest, 2-3 in. 1., 1-lJ in. br., cut down to the rachis below into 

 ovate-deltoid pinnl. with deep blunt entire lobes ; texture herbaceous ; rachis 

 stramineous ; under surface naked ; veinlets pinnate in the lower lobes ; sori 2-8 

 to a pinnule. — Hk, Sp. 4. p. 263. 



Hab. Fernando Po, Q. Mmm.—'E.ahKt of the less-divided forms of N. spimdosum. 



40. P. (Pheg.) unidentatum, Hk. & Am. ; st. tufted, 1 ft. 1., clothed with 

 squarrose dark-brown linear scales towards the base ; Jr. 2-3 ft. 1., 1 ft. or more 

 br., deltoid ; lower pinnce the largest, deltoid, 6-9 in. 1., 4-6 in. br. ; pinnl. 

 lanceolate, the lower segm. distinct, ovate-oblong, deeply pinnatifid, with slightly- 

 toothed lobes ; texture herbaceous ; rachis and both sides naked ; vM. veinlets 

 forked ; sori submarginal. — Hk. Sp. 4. p. 267. 



Hao. Sandwich Isles. — ^This also, which is now in cultivation at Kew, is like a Nephro- 

 dium of the Lophodinm group. 



