56 



The Dictionary of Gardening, 



AlBOT^hila.— continued. 



A. excelsa (tall).* trunk about 30ft. high. sti. and main rachises 

 murifatetl. jnmds aiiipk-, dark gi-een above, paler beneath • 

 primary pmiije l^ft. to 2ft. long, bin. to lOin. wide ; pinnules 

 numerous, oblong-lanceolate, acuminated, deeply pinnatind, often 

 quite pinnate ; ultimate divisions ^in. to ^in. long, oblong, acute 

 or obtuse, falcate, the margins sub-recurved, serrated, sori 

 copious near the costules. Norfolk Island. This rapid- 

 growing and splendiil sjiecies proves nearly hardy in the 

 neighbourhood of Cornwall ; and is a raost effective plant for 

 sub-tropical gardening purposes generally. Greenhouse species. 



A. ferox (tierce). Synonymous with A. aculeata. 



A. Gardner! (Gardner's). Synonymous with 

 A. palt'vlufa. 



A. gigantea (gigantic), can. growing from 20ft. 



to 40ft. liigh. sfi. asperous ; fronds, primary 



pinnre Uft. to 2ft. and more long, deeply 



piimatitid at the apex ; pinmdes, upper ones 



sessile, lower ones petiolate, oblong-acumi- 

 nate, 3iii. to 6in. long, five to nine lines wide, 



deeply pinnatifid ; lobes triangular or rounded, 



serrated, aori copious. India, &c. Stove 



species. SVN. A. glabra. 

 A. glabra (glabrous). Synonymous with A. 



ijiijaxtea. 



A. glauca (giey). Synonymous with A. con- 



tainliians. 



A, infesta (troublesome). fronds ample, 

 tripinnatitid ; pinnse oblong-lanceolate, 1ft. to 

 lift, long ; pinnules ligulate, 3in. long, ^in. 

 to liu. broaci, cut down to a narrow wing ; 

 segments ^in. broad, ligulate, blunt, nearly 

 entire ; texture sub-coriaceous ; colour deep 

 green on both sides. Tropical America ; 

 widely distributed. Stove species. 



A. Leichardtiana (Leichardt's).* cau. 10ft. 

 to 20ft. high. sti. jointed upon the caudex ; 

 main and secondary rachises purple, decid- 

 uously powdery, spiny, fronds 6ft. to 10ft. 

 long, firm, dark green above, sub-i^laucous 

 beneath, nukeil and ghuiccus (ur nearly so), 

 tripiunute ; primary pinn;e lAft. to 2ft. long. 

 Bin. wide, oblong-lanceolate, acuminate ; pin- 

 nules oblong-acuminate, sessile, pinnatifid 

 only at the apex ; ultimate divisions linear- 

 oblong, acute, spinulose -serrate, sort copious, 

 close to the costa. Australia, 1867. Green- 

 house species. SVjVS. A. Macarthurily A. 

 Moorei. 



A, lunulata (moon-shaped pimiuled). fronds 

 ample, tripinnate. rachises stramineous, 

 glabrous below, densely muricated ; pinnce 

 oblong-lanceolate, lift, to 2ft. long ; pinnules close, ligulate, ses- 

 sile, 4in. to Sin. long, ^in. to liu. broad ; segments close, Ugiilate, 

 falcate, blunt, one line bi'oad, obscurely crenulate. sori minute. 

 h. 25ft. Polynesia. Greenhouse species. 



A. Macarthurii (MacArthur's). Synonymous with A. Leichard- 

 tiana. 



A. Moorei (Moore's). Synonymous with A. Leichardtiana. 



A. paleolata (scaly).* cau. slender, 10ft. to 20ft. high, fronds 

 ample. tiiplnn:itifid. rachi.s<:-s stramineous, smooth, pubescent 

 below ; pinna' olilung-lanceolate. lift, to 2ft. long; pinnules ligu- 

 late, sessile or shortly stalki'il, 3in. to 4in. long, iin. to|in. broad, 

 deeply cut, the segments bhiiit and nt'iniy entire ; texture sub-coria- 

 ceous ; colour deep green, both surfaces deeply pilose, the lower 

 scali{ on the ribs, sori large, medial. Columbia, &c. Stove 

 species. Syn. A. Gardneri. 



A. procera (tall), sti. aculeated and paleaceous below, with large 

 glossy, dark bro^vn scales, fronds bipinnate, glabrous, pinnatifid 

 at the apex ; primary pinnte 1ft. or more long, the rachis winged 

 above ; ]nnnnles 2in. to 3in. long, oblong-acuminate or obtuse, 

 pinnatitid half way down to the costa ; lobes short, sub-rotundate, 

 often acute, mostly entire, sori small on all the lobes, between 

 the costule and the margin. Ti'opical America. Stove species. 



A- pruinata (as if hoar-frosted).* sti. densely woolly at the base. 

 fronds glaucous, bi-tripinnatc ; primary pinna; petiolate, 12in. to 

 18iu. long, ovato-lanceolate ; pinnules 5in. to 4in. long, lin. wide, 

 petiolulate, from a broad base, oblong-acuminate, deeply pinna- 

 tifid, or again pinnate ; ultimate divisions lin. long, lanceolate, 

 very acute, deeply and sharply serrated, sori solitary. Tropical 

 America, extending to Chili. Stove or greenhouse species. 



A. radens (rasping), cau. 3ft. high, 3in. diameter, sti. 2ft. to 

 3ft. Inn-, ek'thed with ovate, pale brown scales, fronds 6ft. to 

 8ft. l-'Hi;, laui.eolate-ovate, bipumatisect ; primary segments lift, 

 long, elungatu-oblong, acuminate ; secondary ones 2in. to 3in. long, 

 petiolulate, linear-lanceolate, pinnati-partite ; segments oblong, 

 denticulate, sori between the costule and the margin. Brazil. 

 Stove species. 



A. Rebeccse (Rebecca's).* cau. slender, 8ft. high. fronds 

 ample, bij)inuate ; pinnules twenty to thirty on each side, the 



. lower ones stalked, linear, 2in. to 3in. long, more or less inciso- 

 crenate, apex acununate. sori principally in two rows between 



Alsophila — continued. 



the midrib and edge. 9^*^^"sland. Greenhouse species. See 



Fig. 65, for which we are indebted to Mr. Bull. 

 A. sagittifolia (arrow-leaved).* fronds oblong-deltoid, 4ft. to 



6ft. long, bipinnate. rachises stramineous, muriciited ; pinnse 



lanceolate, Jft. to 1ft. long, the lower shorter, deflexed ; pinnules 



sessile, ligulate, crenulate, cordate on both .-iides at the l»;ise, lin. 



to IMn. long, nearly Jin. broad, .wri large. Trinidad, 1872. Very 



handsome and diNtinct stove species. 

 A. Scottiana (Srutt's).* fronds ample, tripinnatifid. rach}.-<e8 



castaneous, naked and smooth beneath ; pinnse oblong-lanceolate, 



Fig. 64. Alsophil.\ aculeata. 



Lift, to 2ft. long ; pinnules sessile, 3in. to 4in. long, about iin. 

 broad, ligulate, cut down to a narrow wing on the rachis ; seg- 

 ments ligulate, blunt, dentate, sub-falcate, not iin. broad, sari 

 sub-costular. Sikkini, 1872. Greenhouse species. SYN. A. 

 cunwsa. 



A. Tsenitis (T»nitis-like).* fronds 3ft. to 6ft. long, bipinnate ; 

 pinnules distant, 3in. to 5in. long, lanceolate, acuminate, glabrous, 

 sub-entire, petioled ; petiole articulated on the racliis. sori in a 

 single series, equidistant between the costa and the margin, 

 mixed with long, copious hairs. Brazil. An elegant stove 

 species. 



A. villosa (villous).* cau. 6ft. to 12ft. high. sti. 1ft. or more long, 

 tubercular, densely clothed at the base with ferruginous scales. 

 fronds from 6ft. to 8ft. long, bi- or sul)-tripinnate, broadly lanceo- 

 late in outline ; pinnules lin. to 3in. long, oblong-lanceolate, 

 obtusely acuminate, deeply pinnatifid ; lobes oblong, obtuse, entire 

 or coarsely serrated, sori copious. Tropical America. A very 

 beautiful stove species. 



AIiSTONIA (in honour of Dr. Alston, once Professor 

 of Botany at Edinburgh). Ord. Apocynacece. Usually tall, 

 lactescent, or milk-bearing- stove evergreen shrubs or trees, 

 with small white flowers, which are disposed in terminal 

 cymes. Leaves entire, opposite or often whorled. Of easy 

 culture, thriving best in a mixture of peat, loam, and sand. 

 Cuttings root readily in sand, in heat. Besides the one 

 mentioned, there are eleven other species. 



A. scholaris (school). Jl., corolla salver-shaped, white ; cjTues 

 on short peduncles. March to May. I. five to seven in a whorl, 

 olinvate-ttbl-'Ug, obtuse, ribbetl ; upper surface glossy, under white, 

 and luivini; the veins approximating the margin, h. 8ft. India, 

 1803. SV.\. Echifcs schului-is. 



AIiSTROmERIA (in honour of Baron Alstriimer, a 

 Swedish botanist and friend of Linnaeus). Ord. AmariiUi- 

 dacecB. Tall handsome hardy or half-hardy tuberous rooted 

 plants, with leafy stems and terminal umbels of richly- 

 coloured flowers; perianth regular, six -parted, suboam- 



