PELL/EA. 



71 



oblong, sharp -pointed lobes. The fronds are of a thin but firm texture, smooth 

 on both surfaces, and the sori (spore masses), disposed in a continuous, 

 marginal line, are provided with a narrow, thin, transparent involucre. — 

 Hooker, Species Filicum, ii., p. 141, t. 118b. 



P. (Cheiloplecton) Stelleri— Cheil-op-lec'-ton ; Stel-le'-ri (Steller's). 

 A synonym of P. gracilis. 



P. (Cheiloplecton) Tamburii — Cheil-op-lec'-ton ■ Tam-bur'-i-i (from 

 Tambur), Hooker. 



A very distinct, greenhouse species, of medium size, native of Tambur 

 Valley, East Nepaul, where it was gathered by Dr. Hooker. Its singular 

 fronds, in shape of the Greek delta, A, and about 6in. each way, are borne 

 on erect, polished, bright chestnut-brown stalks 6in. to 9in. long. They are 

 composed of three principal leaflets, the terminal one being cut down nearly 

 to the rachis into several broad, spear-shaped lobes, of which the upper ones 

 are entire and the lower ones larger and waved ; the lateral leaflets have the 

 lobes on the upper side nearly entire, but those on the lower side are 

 prolonged and again deeply lobed, the largest divisions being about lin. deep 

 and Jin. broad at the base. All are of a somewhat leathery texture, their 

 under- surface is thinly coated with white meal, and their involucre, of 

 a brownish colour, is continuous, but regularly notched, along the outer edge. 

 — Hooker, Species Filicum, ii., p. 134, t. 129a. 



P. (Allosorus) ternifolia— All-os-o'-rus ; ter-nif-or-I-a (ternate-leaved). 

 Fee. 



This stove species, which is as pretty as it is interesting, and which 

 belongs to the same group as P. brachyptera, P. mucronata, and P. ornithopus, 

 is a native of Tropical America, being found principally in the Andes, from 

 Texas southward to Peru and Chili. Eaton says of it : "A common Mexican 

 species, found as far south as Peru, and reappearing in the Hawaiian Islands ; 

 also collected near the head- waters of the Rio Colorado of Texas." Lowe states 

 that it was received at the Royal Gardens, Kew, from Mr. D. Cameron, in 

 the year 1841. The very elegant, pendulous fronds, 6in. to 12in. long, lin. 

 to ljin. broad, and borne on tufted, erect, dark chestnut-brown stalks, 2in. to 



