ASPLENIUM 



ASTELIA 



415 



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

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



cc. Ultimate divisions rhombic, sharply spinulose: 



texture herbaceoiis. 



23. fontanum, Bernh. Growing in dense clusters: lys. 



3-6 in. long, 1 in. or more wide, 2-pinnate; .segms. with 



2-5 spinulose teeth which 



are widely divergent: sori at 



maturity covering nearly 



J" 5^ the entire surface of the 



^^^ segms. England and Spain 



to the Himalayas. S. 1 : 574. 



ccc. Ultimate divisions 

 longer, not spinidose: 

 texture membranous or 

 herbaceous. 



24. bulbiferum, Forst. 

 (.4. Idxum, Hort.). Lvs. 

 1-1 yi ft. long, 6-8 in. wide, 

 3-pinnatifid ; pinna; tapering 

 to a slender toothed point: 

 often bearing bulbs from 



which new plants 

 originate while still 

 attached to the If. 

 Afr. and Australasia. 

 8.1:508. Gn.72:156. 



25. m3rriophyllum, Presl. 

 {A. rhizophijUiim, Kunze). 

 Fig. 415. Growing in ex- 

 tensive tufts, with grayish 

 brown stalks and rachises: 

 lvs. 6-15 in. long, 3-pinnate 

 or 4-pinnatifid, the ultimate 

 segms. frequently deeply 

 2-lobed with a single sorus 

 to each division. Fla. to S. 

 Amer. 



26. cristatum, Lam. (A. cicutdrium, Swartz). 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. 



AA. Sori linear, margirwl or submarginal, on narrow, 



linear, ultimate divisions of the If. (Darea.) 



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



27. oceanicum, C. Chr. (A. obtusilobum. Hook., not 

 Desv.). Lvs. 4-7 in. long, 2 in. wide or less, with about 

 10 pinnae, which are made up of 5-7 narrow segms. bear- 

 ing occasional sori in the outer margin of the segms. 

 New Hebrides and Fiji Isls. S. 1:625. 



BB. Lvs. 2-pinnate or 3-pinnatifid, over a fool long. 



c. Pinnse short, with close segins. 



28. rutaefdlium, Kunze. Lvs. 13-15 in. long, with 

 12-20 pinnse on each side, each with 7-11 narrow segms., 



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

 India and Japan. 



29. Belangeri, Kunze. Fig. 416. Lvs. 1.5-18 in. long, 



3 in. wide, with numerous horizontal pinnae on each 

 side, cut into about 12 slender linear segms. on either 

 side, which are set nearly at right angles to the rachis; 

 the lower basal segms. often forked. Each segm. has a 

 single sorus, and 1 vein. This species is thought by 

 some fern students to be merely a divided variety of A. 

 lenerum, Forst. (No. 12). In general the two species 

 are much alike. E. Indies. 



30. dimorphum, Kunze. Stalks 6-12 in. long, naked: 

 blades 2-3 ft. long, 12-15 in. broad, ovate-deltoid, 2-3 

 pinnate; sterile lvs. 2-pinnate, segms. ovate 1 in. long, 

 }4in. broad, bluntly toothed; fertile lvs. .3-pinnate, 

 segms. linear, each with a single sorus. Norfolk Isl. 



415. 



Asplenium myriophyllum. 



(X34) 



CC. Pinnse longer, with scattered narrowly linear segms. 



31. vivipanim, Presl. Lvs. 15-24 in. long, 6-8 in. 

 wide, on rather short stalks with pinnatifid pinnules and 

 ultimate segms., which are narrowly linear and often 

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

 Mauritius and Bourbon. Cult, under various names. 

 S. 1:662. A. nobilis, Hort., is a more vigorous variety, 

 originally from New Guinea. 



AAA. Sori more or less curved, sometimes horseshoe- 

 shaped: lvs. ample, 2-Jf-pinnalifid. 



32. Filix-fdemina, Bernh. Lvs. lJ^-3 ft., broadly 

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

 with numerous more or less pinnately incised or serrate 

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

 in cult. Schneider describes 56 varieties. 



33. acrostichoides, Swartz [A. thelyptercndes, Michx.). 

 Lvs. 1-2 ft. long, on long, straw-colored stalks, 6-12 in. 

 wide, 2-pinnatifid, with linear-lanceolate pinnae; segms. 

 crowded, oblong, minutely toothed: sori 10-12 to each 

 segm. Rich soil in the E. U. S. S. 1:651. 



34. spinulosum, Baker. Lvs. 9-12 in. each way, del- 

 toid, 3-4-pinnatifid, with 9-12 pinnae on either side, the 

 lowest much the largest; segms. short and sharply 

 toothed. China and Japan. 



Supplementary list of less common trade names; A. aculed- 

 tum, Hort. Hab.{?). — A. aTbdreum. See Diplazium. — A, bijidutn= 

 A. lineatum. — A. decdrutn, a sport from A. bulbiferum. — A. decus- 

 satum. See Caliipteris. — A. ellipticum, Hort., a trade name. — A. 

 fidccidum. Forst. Coolhouse basket fern from Austral., Tasmania 

 and New Zeal. Lvs. 2-3 ft. long, 4-8 in. broad; stipes stout, flex- 

 ible, greenish, naked; pinnaei numerous, close or distant, lanceo- 

 late, leathery, 4-8 in. long, j2-^4in. broad. Very variable. — A. 

 GoTingidnum var. plctum, Mett (Athyrium Goringianum var. 

 pictum, Hort.}. Distinguislied from all other members of the genus 

 by the bright color of its entirely deciduous lvs., which are 10-15 

 in. long, spear-shaped, and pendulous. Possibly the only hardy 

 variegated fern. It. fiowever, needs glass protection for best results. 

 Stalks purple or claret-colored: lvs. green with a central band of 

 gray; Ifts. divided into sharply toothed pinnules on which the 

 oblong or kidney-shaped sori are arranged in 2 rows parallel to 

 the midvein. Japan. — A. laceratum, Desv. Allied to A. Nidus and 

 possibly a variety of that species. Lvs. narrower, cut into irregu- 

 lar lobes, each loiae having black stripe about 3 in. long. Brazil. — 

 ,4. Idncetim. See Diplazium. — .4. Laurentii, Christ, var. denticu- 

 latum. Allied to A. macrophyllum but smaller. Congo. — A. 

 lineatum, Swartz. Warmhouse species from Mauritius and Bour- 

 bon, is very variable, running into forms with Ifts. again pinnate, 

 which have either small, linear pinnules or these again twice cut; 

 lvs. 1-2 ft. long. 4-6 in. wide: stalks erect, 6-9 in. long, more or less 

 scaly. — A. longissimum, Blume. The best of all the genus for large 

 baskets. Lvs. 2-3 ft. long, 4-6 in. broad: stalks blackish, 3-12 in. 



^S'i^fJ^ 





416. Asplenium Belangeri. (XM) 



long; Ifts. sessile, auncled. E. Indies. S. 1:602. — .4. macrophyl- 

 Ijtm, Swartz. Coolhouse species from Polynesia, Malaya, China, and 

 Himalayas. Lvs. 6-18 in. long, 6-12 in. wide; stalks brownish; Ifts. 

 6-12 pairs, stalked, 3-6 in. long, 1-3 in. wide, sharp-pointed, ser- 

 rate. — .4. Shepherdii, Spreng. See Diplazium. 



L. M. Underwood. 

 ASPRfiLLA: Hystrix. R- C. BENEDICT.f 



ASTELIA (name alluding to epiphytic character of 

 some species). Liliaces--. Greenhouse plants with 

 racemes or panicles of small flowers. 



Astelias are perennial herbs of about a dozen species 

 in New Zeal., Austral, and the Pacific Isls., with lvs. 

 all radical or crowded at the base of the st., belonging 

 to the Dracana tribe: fls. .small and dia'cious; perianth 



