608 



FRAXINUS 



FRAXINUS 



Hort. With dark green, shining foliage. Var. panndsa, 

 Hort. Similar to the former, but Ivs. larger and nar- 

 rower. 



10. veliltina, Torr. (F. pistacusfdlia,Tori\). Tree, to 

 40 ft., with velvety pubescent, rarely glabrous branches: 

 Ifts. 5-9, sometimes reduced to 3 or even 1, sbort- 

 stalked, oval to lanceolate, entire or remotely serrate, 

 yellowish green, firm and thick at maturity, pubescent 

 or nearly glabrous beneath, 2-4 in. long : fr. spatulate, 

 with marginless bodv. Texas to Arizona and N.Mexico. 

 S.S. 6:267. -Not hardy North. 



11. Oregdna, Nutt. Tree, to80 ft.: petioles sometimes 

 glabrous at length : Ifts. 7-9, almost sessile or short- 

 stalked, oblong or elliptic, acuminate, entire or ob- 

 scurely and remotely serrate, light green, 23^-6 in. long, 

 thick and firm at maturity : fr. oblong-obovate, with de- 

 current wing, about l}4 in. long. Wash, to Calif. S. S. 

 6:276. 



cc. Fr. elliptic or broadly spatulate^ body compressed 

 with the wing all around. 



12. Caroliniina, Lara. [F. platycd7-pa, Michx.). 

 Water Ash. Tree, to 40 ft., with pubescent or gla- 

 brous branches : Ifts. 5-7, stalked, ovate or oblong, 

 acuminate, serrate, rarely entire, pubescent or gla- 

 brous beneath, 2-5 in. long: fr. 1-2 in. long, with pin- 

 nately veined wing, often 3-winged. Virginia to Fla., 

 west to Arkansas and Texas. S.S. 6:274-75. 



BB. Fls. without calyx (only No. 13 has a deciduous 

 minute calyx): anthers cordate, rarely broadly 

 oblong: Ifts. generally more than 7, nearly gla- 

 brous. {iSnbgenus Fraxinaster.) 

 c. Branches 4-a}igJe(l and usually winged. 



13. quadrangiil^ta, Michx. Blue Ash, Tree, to 80. 

 rarely 120 ft.: Ifts. 7-11, short-stalked, ovate to lanceo- 

 late, acuminate, sharply serrate, yellowish 

 green on both sides, 3-5 in. long: fls. per- 

 fect: fr. oblong, emarginate, winged all 

 around, 1-2 in. long. From Michigan to 

 Arkansas and Tennessee. S.S. 6:263. 



cc. Branches terete or nearly so. 



D. BJoom dioecious: rachis at the base of 



Ifts. with thick rufous totnentum. 



14. nigra.Marsh. { F. sambuc ifbli a, "L^iXn.). 

 Black Ash. Fig. 868. Tree, to 80 ft.: Ifts. 

 9-11, sessile, oblong-lanceolate, rounded at 

 the base, acuminate, sharply serrate, green 

 on both sides, dark above, 3-6 in. long: 

 anthers broadly oblong: fr. narrow-oblong, 

 with decurrent wing. From Canada to Vir- 

 ginia, west to Mo. S.S. 5:264-65. Em. 382. 



15. Mandschilrica, Rupr. Tree, to 100 ft., 

 868. Key of with obtusely quadrangular branches and 



Fraxinus dark brown buds: Ifts. 9-11, almost sessile, 



nigra. ovate to oblong-lanceolate, sharplj' serrate, 



Nat. size. pubescent or hispid on the veins beneath, 



3-6 in. long: fr. oblong-lanceolate, 1-134 in. 



long. Manchuria, Corea, Saghalin, Japan. Valuable 



tree of vigorous growth. 



DD. Bloom perfect or polygamous : rachis without con 

 spicuous rufous tomentum. 

 E. Buds black. 

 16. exc6l8ior, Linn. Fig.866. Tall tree, to 120 ft.: buds 

 black: ifts. 9-13, almost sessile, oblong-ovate or ovate- 

 lanceolate, acute oracuminate, serrate, dark green above, 

 paler beneath. 2-5 in. lon<<: fr. oblong, often emargi- 

 nate, about IK in. long. Eu., W. Asia. Many different 

 varieties are cultivated, some of the most distinct being 

 the following: Var. 41bo-marginata, Hort. Lfts. edged 

 white. Var. Albo-variegita, Hort. Lfts. blotched whire. 

 Var. aiirea, Loud. With yellow branches. Var. ailrea 

 p6ndula. Loud. With pendulous yellow branches, but 

 a somewhat weak grower. Var. asplenifolia, O. Ktze. 

 (var. scolopeu'lrifolia, Hort.). Lfts. very narrow, al- 

 most linear. Var. crispa, Willd. (var. at rovirens, Hort., 

 var. cucullata, Hort.), with very dark green curled and 

 twisted Ivs.; of slow growth. Var. diversifblia, Ait. {F. 

 heterophylla, Vahl. F. simplicifolia laciniata, Hort. 



F. rufa, Hort., not Bosc). Lvs. simple or 3-parted, 

 usually incisely dentate. \^ar. monophylla, O. Ktze. (7*'. 

 monophylla, Desf. F. simplicifolia, Willd.). Lvs. 

 simple, ovate, serrate, rarely with 1 or 2 small lfts. at 

 the base. Var. nana, Loud. (var. polemoniifolia, 

 var. globosa, Hort.). A compact, slow growing, dwarf 

 form with very small lvs. Var. p6ndula, Ait. With 

 pendulous branches. One of the best pendulous trees 

 for forming arbors and shady seats. 



EE. Buds b7-own. 



17. parvifolia, Lam. (F. lentiscifdlia, Desf.). Shrub 

 or small tree, to 15 ft., with slender, often purplish 

 branches: lfts. 7-13, sessile, obovate or obovate-lanceo- 

 late, acute, serrate, 1-2 in. long: fr. oblong, obtuse or 

 acute. W. Asia, S. Europe. Var. p6ndula, Dipp., with 

 pendulous branches, forming a graceful small weeping 

 tree. 



18. potam6phila, Herd. Small tree, to 30 ft., with 

 rather stout, upright branches : lfts. 7-13, stalked, 

 rhombic-ovate or ovate-lanceolate, serrate, acute or 

 acuminate, 1-2)^ in. long : fr. linear-oblong, Turkes- 

 tan, Songaria. 



F. angustifdlia,'Va.h.]. Allied to F. parvifolia. Lfts. oblong- 

 lanceolate or lanceolate, serrate, to 8 in. long. S. Eu., N. Afr., 

 W. Asia.— F. andmala, Wats. Small tree, to 20 ft., with quad- 

 rangular branches: lvs. simple or pinnate, roundish or round- 

 ish ovate. lJ^-2 in.: fr. obovate. Colo.. Utah. S.S. 6:266.— J'. 

 argentea, Loisel., is a var. of F. rotundifolia. but in gardens 

 often other Ashes, especially varigated forms, are cult, under 

 this name.— J'. Berlandieriana, DC. Allied to F. lanceolata. 

 Tree, to 70 ft.: lfts. 3-5, ovate or obovate, serrate, downy along 

 the veins beneath, to 4 in. long. Texas to Mexico. S.S. 6:273.— 

 F. iJi7imormna, Beadle. Allied to F. Americana. Tree, tooOft.: 

 branches pubescent: lfts. 7-9, oblong-lanceolate, pubescent be- 

 neath, 3-6 in. long: fr. 1^-2 in. long, emarginate, with elliptic. 



marginless body. N. Carolina.— F. dimorpha, Coss. & Dur. Al- 

 lied to F. xanthosyloides. Shrub: lfts. 5-7, roundish ovate to 

 oblong, creuately serrate, H"! in. long. N. Airiea. Tender. — F. 

 dipetala. Hook. & Am. Allied to F. cuspidata. Shrub : lfts. 

 5-7, elliptic or ovate, serrate or entire, %-2 in. long: tls. with 2 

 obovate petals. Calif.. Mexico. S.S. 6:261. Tender.— F. fieri- 

 bundrt. Wall. Allied to F. longicuspis. Tree, to 40 ft.: lfts. 5-7. 

 ovate-lanceolate, serrate, reticidate beneath, 2-4 in. long: pani- 

 cles large, to 10 iu. long: petals oblong. Himalayas. Tender.— 

 F.Qreggi, Gr&y. Allied to F. cuspidata. Small tree: lfts. 3-7, 



