1464 



9. trSmula, R. Br 



chestnut-brown st;ii 

 lower often mu.li ■ 

 filling up the will 

 New Zealand.- M - 

 i4na iP. Smlthi,. li 



PTEROCARYA 



on polished 

 iiply pinnate, 

 1--, sometimes 

 !>.. Australia, 

 s var. Smith- 



2012 Pteris Cretica. var Jbo lineata 



10. scabfirula, Richard. L\ s. 1_'-18 m. long, on brown 

 ish scabrous stalks, lanceolate-ovate in outline, tripin- 

 nate or quadri-pinnatifid throughout; rachis tlexuous, 

 scabrous; sori at maturity covering nearly the entire 

 surface of the narrow lanceolate segments. New Zea- 

 land. 



11. biaurlta, Linn. (P. mclxima, Baker. P. nemorAHs. 

 Willd.). Lvs. 15-30 in. long, with a terminal pinna 0-9 

 in. long cut into narrow round-pointed divisions on 7-10 

 pairs of similar lateral ones, the lowest i>air biariiig a 

 fork on the lower basal side. All trnjji.al r<(,'i.ms.— 

 Habit very like P. quadriaurita . tn.Tii wlii.h it differs 

 chiefly in the venation. Var. cristita {!'. miisiinu, var. 

 cristhtUy Hort.) is a cult. form. 



12. Wallichiina, Agardh. Lvs. tripartite, with the 

 lateral divisions again forked, the central one reaching 

 2 ft. long, with numerous lanceolate sessile opposite 

 pinnules, cut again into nuraenms narnpw IoIii-n one- 

 eighth in. wide. India, Japan and tlir l'liili|.|iiii.- Isluiuls. 



13. leptophylla, Swz. Lvs. deltoid. H-IL' in. .a.li way, 

 on straw-colored stalks ; upper iiiniia .-^iiuiilr, those 

 below pinnatifid to awinged rachis, the lowest similarly 

 bipinnatifld at the base; veins fine; sori not reaching 

 the tips of the segments. Brazil. 



Tlie f.illowiiiK i,ro iiK.stly syiioi.ynis .iiul tnicle ii.-mies that 

 ^:n„-nt ho :,,-„„„1,.,l f,„- l,v tl„. v.Tifii- J' n,ll,n,l.,),hs.-P. 



M. L ) 



PTEKOCABYA (Greek, pteros, wing, and karya, nut; 

 referring to the winged nuts). Juiilnnthlrrrr. Orna- 

 mental deciduous trees, with lar^i-. vlt'-ntnt'-. yiirinate 

 Its., rather inconspicuous greeni-li "- ii' i" '"ImIcus 



catkins, and long, pendulous ra<'tM i inged 



fruits. The three cultivated sj" > i h' i - ;is far 



north as Massachusetts, except slum i. li^li r 



P. stenoptera. They are handsome tries of r:i] 



with graceful dark green foliage, decorated 



and fall with the long, drooping racemes of light green 



fruits. They thrive best in rich and moist soili but also 



grow 

 fall or 



ilrier localil 

 ratified, am 



[*rupagated 



A genus of about 7 .^| ie^ in iln- i':mc:isns region, 



China and Japan, lliuniln -. «iili lam. li">i- pith: lvs. 

 odd-pinnate, with alniM^i ^r^Mlr liis. : in. nn.ii.rcious, in 

 pendulous catkins. :i|i|"iiriiiL; witli tin- Iv^.: staminate 

 .•aikins latlii T d.-iisc, fls. consisting of 3 connate bracts, 

 I I ^1 |i,(N .in.l I. Is stamens; pistillate catkins slender. 

 til'- I-. ii,,i .,\aiv i-nclosed in a connate involucre elon- 

 i;afi-(l int.. a 4 t....thed beak, stigmas 2 : fr. a small 1- 

 sii-ded, winged nut, 4-celled at the base. Ingermination 

 the -l-lobed cotyledons are borne above the ground and 

 become green, while in Juglans and Hicoria thc\ 1 1 main 

 inclosed in the nuts. 

 A. fViHiei buds naked, v<u i'^ I ' ' ' 



fraxinifdlia, Spach {P. d • < i I 



to 60 ft , with spreading br.iii I i i i 



stems from the ground 



11-2 



it oulj in the axils 

 stamens 10-lC: fr 

 I broad, m racemes 



sten6ptera, 



21)1 1 



iged . 



()-12 in long, with tin i 



iieath, Ifts 11-21, oblong, acute, seirate, pubescent be 

 neath on the midiib. 2— t m long stamens 6-10. fr 

 w ith oblong or oval oblong, usually upright wings di- 

 \ergingat a narrow angle. China. — This is a ^ ariable 

 species, and the varieties are of different degrees of 

 hardiness The form cultivated in the Arnold Arboretum 

 has proved as hardy as the preceding species. 

 AA n'liitii hud\ coiered nitJi SS dark bioun, laiqe 

 ilhng oft eaily in ipiiiig accessonj 



btith 



iiig 



rhoifdha, Sieb S. Zucc (P. sojftirtria, Sieb & Zucc. 

 P. Iwvigclta, Hort.). Tree, attaining 80 ft., with .spread- 

 ing branches: lvs. 8-15 in. long, with terete-pubescent 

 or almost glabrous rachis; Ifts. 11-21, oblong or oblong- 

 lanceolate, acuminate, pubescent on the veins beneath 



1 growth, rhi 



2013, Pterocarya stenoptera 



glabrous, 2-4 in. long: fr. with a liroa 

 ing, about 1 in. across, Japan, S.Z. 2:150,— 

 This species is an important forest tree in Japan and 

 proved hardy at the Arnold Arboretum, 



Alfked Render. 



