ASPLENIUM 



13. cune^tum. Lam. Lvs. 12-16 in. long, 4-6 in. wide, 

 tripinuate below, the ultimate divisions broadly obtuse 

 above and strongly cuneate below ; sori linear, usually 

 long for the size of the segments. Trop. regions 

 generally. 



16. fr4g:rans, Swartz (A. fmniculAceum , Kunth.). 

 Lvs. "i-S-pinnate ; ultimate segments lanceolate, sharp- 

 serrate above ; veins simple or the lowest forked : sori 

 oblong, extending from midrib to near base of the lobes: 

 petiole brownish, rachis flattened. W. Ind. S. 1: 577. 



17. font^num, Bernh. Growing in dense clusters : 

 lvs. 3-6 in. long, 1 in. or more wide, 2-pinnate; segments 

 with 2-5 spinulose teeth which are widely divergent : 

 sori at maturity covering nearly the entire surface of 

 the segments. Eng. and Spain to the Himalayas. S. 

 1 : 574. 



ccc. Ultimate divisions longer, not spinulose ; texture 

 membranous or herbaceous. 



18. bulbiferum, Porst. (A. Idxum, Hort.) . Lvs. 1-13^ ft. 

 long, 6-8 in. wide, 3-pinnatifid ; pinnfe tapering to a 

 slender toothed point : often bearing bulbs from which 

 new plants originate while still attached to the leaf. 

 Afr. and Australasia. S. 1 : 508. 



19. rMzophyllum, Kunze (A . mijrioplit'illum, Vre^l.). 

 Fig. 159. Growing in extensive tufts, with grayish 

 brown stalks and rachises : lvs. 6-15 in. long, 3-pinnate 

 or 4-pinnatifid, the ultimate segments frequently deeply 

 2-lobed with a single sorus to each division. Fla. to S. 

 Amer. 



20. cicutirium, Swz. Lvs. 3-pinnatifid with a winged 

 rachis, 8-18 in. long ; pinnules ovate, with 5-7 narrow 

 divisions, each bearing a single sorus ; texture thin, 

 membranous. Trop. Amer., rare in Fla. 



B. Lvs. bipinnatifid, less than a foot long. 

 obtusilobum. Hook. Lvs. 4-7 in. long, 2 





or less, with about 10 pinnse, which are made up of 5-7 

 narrow segments bearing occasional sori on the outer 

 margin of the segments. New Hebrides and Fiji Isls. 

 S. 1 ; 624. 

 BB. Lvs. 2-pinnate or S-pinnatifid, over a foot long. 

 c. Pinnce short, with close segments. 



22. rutaeSaiium, Kunze. Lvs. 13-15 in. long, with 12-20 

 pinnffi on each side, each with 7-11 narrow segments, 



2 or 3 of the lower ones 2-fld. or rarely 3-fld. S. Afr., 

 Ind. and Jap. 



23. Bel4ngeri, Kunze. Fig. 160. Lvs. 15-18 in. long, 



3 in. wide, with numerous horizontal pinnse on each side, 

 cut into about 12 segments on either side, which are set 

 nearly at right angles to the rachis ; the lower basal 

 segment often forked. E. Ind. 



<^'\ 



160. Asplenium Belangeri. 



cc. PiHn(^ longer, with scattered narrowly linear 



segments. 

 24. vivlparum, Presl. Lvs. 15-24 in. long, 6-8 in. wide, 

 on rather short stalks with pinnatifld pinnules and ulti- 

 mate segments, which are narrowly linear and often 



ASTER 111 



forked : plant often bulb-bearing, like A. bulbiferum. 

 Mauritius and Bourbou. Cult, under various names. 

 S. 1:662. A. ndbilis. Hort., is a garden variety. 

 AAA. Sori more or less curved, sometimes horseshoe- 

 shaped ; lvs. ample, a-4 pinnatifid. 



25. Filix-fffimina, Bernh. Lvs. 18 in. to 3 ft., broadly 

 ovate-oblong, bipinnate ; pinnae 4-8 in. long, lanceolate, 

 with numerous more or less pinnately incised or serrate 

 segments. Eu. and N. Amer. — Very variable, especially 

 in cult. Schneider describes 56 varieties. 



26. thelypteroldes, Michx. Lvs. 1-2 ft. long, on long,-* 

 straw-colored stalks : 6-12 in. wide, 2-pinnatifld. with 

 linear-lanceolate pinnje ; segments crowded, oblong, 

 minutely toothed : sori 10-12 to each segment. Rich 

 soil in the eastern U. S. S. 1: 651. 



27. spinuldsum. Baker. Lvs. 9-12 in. each way, del- 

 toid, 3-4-pinnatifld, with 9-12-pinna) on either side, the 

 lowest much the largest ; segments short and sharply 

 toothed. China and Jap. 



Supplement iry list of less common trade names ■ A acutea- 

 turn Hort Hab '—4. a bbreum See Diplazium —A hlti 

 dum^\. hneatum —A denissatum See Calliptens —A eltip 

 ticum Hovt a tiade name — 1 ft ice hnn Porst Coolhouse 

 b-vsket fern trom A. istril I T mm nn 1 N Z Fronds 2 3 tt 

 long 4 8 m br aJ tie t it fl \ He greeui h nakei 



long ^ *4m broad ^ei\ r II — I O unj a t an ^ ir 

 pictum Mettenius ( \tl riii ( iiiginum var pietum 

 Hort ) Distmgiushed tr m ill jlher members of the genus ly 

 the bright color of its entueU leeiduous troiids whith ire lu- 

 1d in long speir hipei in 1 pendulous Possiblv the only 

 hirdv vinegited fern It bowe\er needs glass protection toi 

 best results St-ilks p irple iclireteokred hs green with a 

 central ban lot griv Itt li i ie 1 into sh-irph toothel pinnules 

 on whi h the ol loi g r ki hu\ si -ipe 1 son ire iii iiige 1 n two 

 rows parallel to 



Wi 



and Bourbon i vi 



again pinnate whiLh h t r II I i 1 tl e e 



again twice cut hs 1 It I Ik I 



ot all the genus for I I 1 I I 4 i 



broid stalks blacki 11 1 It 1 lei 



E In! S 1 bO^-J. (/ // s i (_ 11 ; eb 



from Polynesia Mai lya (1 1 1 ai 1 Hiuilaji L^ s t Is in 

 long 6-1' in wile st dks tnwnish Ifts tr-12 pairs stalked 

 3 6 m long 1 3 in wi le si irp pointed serrate —A Nidus or 

 A \idtsAiiS See Thamnopteris — A ^h ptierd Spreng See 

 Diplazium. 



L. M. Underwood. 



ASFBELLA, 



I Asperella. 



ASIEB (a star). Compdsita-. Aster. Starwokt. 

 MICH.ELMAS Daisy. A large temperate-zone geuus of 

 attractive but botanically-eonfused 

 herbs, particularly abundant in N. 

 Amer. The genus is characterized 

 by numerous flattish rays (white, 

 blue, red, or purple), slender style 

 appendages, "compressed several- 

 nerved akenes, and an involucre 

 with unequal bracts in few or sev- 

 eral rows, the pappus simple, soft, 

 and abundant (Fig. 161). Leafy- 

 stemmed, mostly blooming in the 

 autumn. Some of the species are 

 annual, but those in cult, are per- 

 ennial (or rarely biennial). All are 

 easy of cultivation in ordinary soil 

 and exposures, and are among the 

 best plants for the hardy border 

 or for naturalizing in tiie freer 

 parts of the grounds. They grow 

 readily from seeds, but are gen- 

 erally prop, by division of the 



clumps. Calimeris and Linosyris ^^ jtamens; d, styles, 

 are kept distinct in this book. 



A. Old World Asters, some of them old garden plants, 

 and somewhat modified by cult. 



B. Stems simple and scape-like, bearing a single fl. 



alplnus, Linn. Lvs. entire and spatulate, forming a 

 cluster on the ground, those on the stem small and 

 linear : St. 3-10 in., bearing a large violet-rayed, hand- 

 some head. B.M. 199. -In its wild state, the plant also 



161 Disk floret of 



6, corolla; 



