ASPLKXIUM 



ASTELIA 



415 



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

 petiole brownish, rachis flattened. W. Indies. 8.1:577. 



cc. Ultimate divisions rhombic, sharply spinulose: 



texture herbaceous. 



23. fontHnum, 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 

 the entire surface of the 

 segms. England and Spain 

 to the Himalayas. S. 1 :574. 



ccc. Ultimate divisions 

 longer, not spinulose: 

 texture membranous or 

 herbaceous. 



24. bulbiferum, Forst. 

 (A. Idxum, Hort.). Lvs. 

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

 3-pinnatifid ; pinnae 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. myriophyllum, Presl. 

 (A. rhizophyllum, Kunze). 

 Fig. 415. Growing in ex- 

 tensive tufts, with grayish 

 brown stalks and rachises: 

 Ivs. 6-^15 in. long, 3-pinnate 

 or 4-pinnatifid, the ultimate 

 segms. frequently deeply 

 2-lobed with a single sorus 



41S. Asplenium myriophyUum. to each division. Fla. to S. 

 Amer. 



26. crisUttum, Lam. (A. cicutarium, 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, marginal 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 pinna:, 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 foot long. 

 c. Pinnx short, wit.\ close segms. 



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

 12-20 pinnae 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. BeUtageri, Kunze. Fig. 416. Lvs. 15-18 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 . 

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

 are much alike. E. Indies. 



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

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

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

 J^in. broad, bluntly toothed; fertile Ivs. 3-pinnate, 

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



cc. Pinnse longer, with scattered narrowly linear segms. 



31. viviparum, 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, like 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: Ivs. ample, 24-fnnnalifiA. 



32. Filix-fcemina, Bernh. Lvs. 1^-3 ft., broadly 

 ovate-oblong, bipinnate; pinnae 48 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. thelypteroides, Michx.). 

 Lys. 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. 8.1:651. 



34. spinul&sum, 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. aculea- 

 tum, Hort. Hab.(?). A. arbdreum. See Diplazium. A. bifidum= 

 A. lineatum. A. tlectfrum, a sport from A. bulbiferum. A. decus- 

 salum. See Callipteris. A. etUpticum, Hort., a trade name. A. 

 fldccidum, 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; pinnae] numerous, close or distant, lanceo- 

 late, leathery, 4-8 in. long. J'r-%in. broad. Very variable. A. 

 Garingitinum var. plctum, Mett (Athyrium Goringianum var. 



Eictum, Hort.). Distinguished from all other members of the genus 

 y the bright color of its entirely deciduous Ivs., which are 10-15 

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

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

 Stalks purple or claret-colored : Ivs. 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. lacerdtum, Desv. Allied to A. Nidus and 

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

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

 A. Unceum. See Diplazium. A. 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: 

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

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

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



416. Asplenium Belangeri. ( X X) 



long: Ifts. sessile, auricled. E. Indies. S. 1:602. A. macrophyl- 

 lum, 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. A. Shtpkerdii, Spreng. See Diplazium. 



ASPRfiLLA: Hystrix. 



L. M. UNDERWOOD. 



R - C - BENEDICT.! 



ASTELIA (name alluding to epiphytic character of 

 some species). Liliacex. 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 lys. 

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

 to the Dracaena tribe: fls. small and dioecious; perianth 



