POLYPODIUM 



cc. Lvs. pinnate. 



D. Fronds covered with flat scales underneath. 



polypodioldes, A. S. Hitchcock. Lvs. 2-6 in. long, 



inch or more wide with entire pinnie* veins indistin 



from the thick I 



commonly growing ( 



POLYSTICHUM 



DD. Fronds smooth beneath. 

 E. Pinnie broad at base and often confluent. 



Califdmicum, Kaulf. Lvs. 4-9 in. long, 1-5 in. wide, 

 cut into finely toothed pinnae which are mostly confluent 

 at the hase. California. — Has much the habit of the 

 Kuropean forms of P. vutgare. 



CatharlnsB, Langs. & Fisch. Lvs. 6-12 in. long, 3-5 in. 

 wide, with numerous nearly opposite pinnffi which are 

 dilated at the base, contracted just above the base, and 

 slii;htly enlarged and bluntly rounded at the tip; sori 

 large near the midrib. Brazil. 



EE. Pin 



cedi 



nd distinct at base 



fraxinifdlium, Jacq. Lvs. 2^ ft. long, 12-18 in. wide, 



on firm stalks 1-2 ft. long; pinna 4-9 in. long, with a 



tough, somewhat leathery texture and entire margin. 



Columbia to Brazil and Peru. 



subauricuiatum, B 1 u ra e. 



Stalks 6-12 in. long, glossy, 



from wide -creeping root- 



stocks: lvs. 2-3 ft. long, 8-12 



in. wide; sori in a single row 



immersed in the leaf. India 



to Australia. 



AAA. Veins (primary) dis- 

 tinct from midrib to the 

 edge,connected by parallel 

 transverse veinlets form- 

 ing rows of similar 

 areola. 



PhylUtidis, Linn. Lvs. 1-3 

 ft. long, 1^ in. wide, with an 

 acute point, and the lower 

 part narrowed gradually; 

 aieolip in rows of 6-12. usu- 

 ■ch. Fla. to 



fi>rm, from f 

 found in New Hamp- 

 shire. (X ^.) 



cies and the next 



ally with 2 so 



Brazil. — This spt-i'ies might 

 more justly be placed in the 

 genus Campyloneuron. 

 BB. Lvs. with nnder surface 

 tomentose. 

 Lingua, Swz. Lvs. 4-8 in. 

 long, 1-4 in. wide, the apex 

 often cuspidate, the base nar- 

 rowed or rounded; upper sur- 

 face naked, the lower matted 

 with reddish cottony brown; 

 sori in close rows of 4-6 each. 

 Japan to Ceylon. — This spe- 

 often placed in the genus Nipho- 



naria.— P. rigiduluii 



cled at the base. Ja- 



f'h -, / /. r("\. See Phegop- 



! ■ ,i..,los.-P. hexa- 



nuuii. See Phe- 



--■ !' I. t.'<>i)teris Polypo- 

 Hi'xit^s. — y-*. plumdsum is 



-P. Swdrtzii'. See Phy- 

 L. M. Underwood. 



triciispe, Swz. Lvs. hastate, 2-t in. each way, with a 

 central lanceolate-triangular lobe and spreading lateral 



POLYPODY. See Poly podium. 



POLYPTERIS (Greek words meaning many-winged 

 or feathered; referring to the pappus). Comp6sita. 

 This includes a li.Hiicisonip, nis\ -tlii. li.-Li-dv annual known 



tothetradeas /■- ' // . - l'..lypteris is a 



genusof4spei-ii . : m iKs : lvs. mostly 



entire, alternati- •" ii- ' > :: i ■ iml lax corym- 

 bosely panicled Ii.miI- mI il- ]..,vn.- m mnmerand au- 

 tumn: involucre ljrr>ailly bell-sliapi/d or top-shaped; 

 bracts commonly in 2 series, more or less colored and 

 petal-like toward the tips: rays wanting except in P. 

 Hookeriana: akenes linear to club-shaped, 4-sided: 

 pappus of 6-12 equal scales. Distinguished from Pala- 

 foxia by the colored tips of the involucral bracts and the 

 deeply divided limb of the corolla. Monographed in 

 Gray's Synoptical Flora. 



Hoakerlana, Gray (Palafdxia Eookeriihia, Torr.). 

 Annual 1-4 ft. high: lvs. lanceolate, mostly 3-uerved 

 below: heads 1 in. or more across; rays 8-10, deeply 

 3-cleft. Sandy plains. Neb. to Tex. B.M. 5549. -Hand- 

 some plant; sometimes treated as an everlasting. 



POLYSCIAS (many and shade; referring to the 

 abundant foliage). Aralidcew. Large shrubs or trees, 

 glabrous, of about 8 species of India, Africa and Malaya. 

 Lvs. pinnate, with thick entire leaflets: fls. small, 

 usually 5-merous (sometimes 4-merous), the calyx 

 truncate or toothed, the petals valvate, the ovary 5-8- 

 loculed, the styles usually of the same number and 

 distinct. Polysoias is allied to tropical Aralias and 

 Panax, and the culture is the same as for those plants. 

 For further botanical discussion, see Panax. 



panicuiata, Baker (TerminAlia ^ler/avs, Hort.). 

 Erect, glabrous shrub: lvs. pinnate, usually with 7 

 Ifts., of which the terminal one is 7-9 in. long, oblong 

 and obtuse, shining. Mauritius.— This is another ex- 

 ample of the confusion which arises from the naming 

 of garden plants before their flowers or fruits are 

 known. For several years this plant was supposed to 

 be a Terminalia, but now it is known to belong to a 

 wholly different family. Another example is Aralia 

 Chnhrieri of the gardens, which belongs to the Celas- 

 traceffi (Elieodendron). 



pinnita, Forst. (Arillia latifdlia, Wight & Arn.). 

 Leaflets orbicular, either nearly entire or with small and 

 remote teeth, the base heart-shaped. Malaya.— The 

 writer does not know that the Aralia latifolia of 

 gardeners is the above plant, as he has not seen it. 

 Aralia latifolia of the trade is described as "very bold 

 and rich in appearance; green and pale yellow leaves." 

 L. H. B. 



POLYSTACHYA (Greek, referring to the many spike- 

 lets). On-hidi'lcew. About 40 species of tropical epiphy- 

 tic orchids, none of which have showy fls. P. luteolu. a 

 native of the West Indies, has minute greenish yellow 

 fls. and has probably been cult, in America, but is not 

 worth while. Sepals connivent or subpatent, the lateral 

 ones connate with the short foot of the column into a 

 mentum: column short: flowering stems short, few- 

 leaved, pseudobulbous. See Orchid. 



lut^ola. Hook. (Dendrdbium polystAchyon, Sw.). 

 Height 6-12 in.: lvs. oblong-linear or ianceolate-oblong, 

 exceeded by the stem; lip 3-lobed to the middle. 



POLtSTICHUM (Greek, many rows; referring to the 

 sori). Polypodiacem. A genus of ferns mostly of tem- 

 perate regions with free veins and the roundish sori 

 covered by indusia that are peltate and attached to the 

 leaf by a short central stalk. They are mostly easily 

 grown and thrive best in shade. Some of the species do 



