24 



ADENOCARPUS 



ADIANTUM 



the lower lip longer than the lateral ones, much exceed- 

 ing the upper lip. Italy, Spain, Sicily. 



dec6rticans, Boiss. (A. Boissieri, Webb). Shrub or 

 small tree, 15-25 ft. : branches tomentose : Ivs. crowded, 

 persistent ; leaflets linear, pubescent : racemes short, 

 compact : calyx villous, segments nearly equal. Spain. 

 R.H. 1883: 156. G.C. II. 25: 725. Gn. 30: 572. -Resem- 

 bles English Gorse, but is thornless. Bark peels natu- 

 rally. Thrives in poor, sandy soil. 



A. anagi/rus, Spreng.=A. frankenioides. A. Boissieri, Webb 

 =A. decorticans. A. complicdtus, Gay. (A. parvifolius, DC.). 

 Branches nearly glabrous : racemes elongated ; calyx glandu- 

 lar. S. W. France, Spain. B.M. 1387, as Cytisus divaricatus. 

 A . commutdtus, Guss. (A. Telonensis, DC.). Branches villous, 

 pubescent : racemes loose ; calyx villous. Spain, Orient. A. di- 

 varicatus, Boiss. =A. intermedius when held to include A. com- 

 mutatus and complicatus. A. folioldsus, DC. Branches and Ivs. 

 crowded, villous : racemes compact, many-flowered; calyx vil- 

 lous. Canary Isl. A. grandiflbrus, Boiss. Branches and Ivs. 

 glabrous : racemes few-flowered ; calyx pubescent. S. France, 

 Spain. A. Hispdnicus, DC. Branches velvety-pubescent : Ivs. 

 tomentose beneath : racemes dense, many-flowered ; calyx glan- 

 dular. Spain. A. parvifolius, DC. =A. complicatus, Gay. A. 

 Telonensis, DC.=A. commutatus. A. Telonensis, Nicholson = 

 A. grandiflorus. ALFRED REHDER. 



ADEN6PHORA (gland-bearing; referring to the cy- 

 lindrical nectary which surrounds the base of the style). 

 Campanulacea?. A genus of hardy herbaceous peren- 

 nials separated from Campanula only by minor charac- 

 ters, as the trilocular ovary and cylindrical nectary. 

 Fls. blue, nodding, on short pedicels, produced freely in 

 midsummer in slender but stiff, erect panicles or loose 

 racemes. For culture, see Campanula. Prop, by seeds 

 or cuttings in spring. The plants do not take kindly to 

 division or other disturbance of the roots. Many other 

 species than those in the trade are worthy. 



communis, Fisch. (A. lilifldra, Schur. A.Fischeri, G. 

 Don. A.UUifdlia,Ledeb.). Radical Ivs. petiolate, ovate- 

 rotund, cordate, crenate-dentate ; cauline Ivs. sessile, 

 ovate-lanceolate, coarsely serrate : fls. numerous, in a 

 pyramidal panicle ; lobes of the calyx triangular ; style 

 exserted. 



Lamarckii, Fisch. Lvs. ovate-lanceolate, sharply ser- 

 rate, ciliate : fls. racemose; lobes of the calyx lanceolate ; 

 style not exserted. 



Potanini, Hort. Shrubby: spikes 2-3 ft. high: fls. 134 

 in. across, light blue. July-Aug. Int. 1899. 



J. B. KELLER and W. M. 



ADEN6STOMA (aden, gland, stoma, mouth ; calyx 

 with 5 glands at the mouth). Rosacece. Shrubs, rarely 

 small trees : Ivs. linear, small : fls. white, about 1-5 in. 

 broad, in terminal panicles; petals 5, stamens 10-15: fr. 

 a small akene. Two species in Calif. Heath-like ever- 

 green shrubs ; very handsome when in full bloom. 

 They may be cult, in temperate regions in a sunny posi- 

 tion and well drained soil. A. fasciculatum stands 

 many degrees of frost. Prop, by seeds and greenwood 

 cuttings in spring. 



fascicul&tum, Hook. & Arn. Shrub, 2-20 ft. : Ivs. fas- 

 ciculate, linear: panicles rather dense, 2-4 in. long: fls. 

 nearly sessile. May-June. Ranges northward to Sierra 

 Co. The characteristic shrub of the chaparral or 

 chamisal regions of the coast ranges of Calif. Int. 1891. 



sparsifdlium, Torr. Shrub or small tree, 6-12 ft., 

 rarely 30 ft., resinous : Ivs. alternate : panicles loose ; 

 fls. pedicelled, larger, fragrant. S. and Lower Calif. 

 Int. 1891. ALFRED REHDER. 



ADESMIA (not bound; referring to the free stamens). 

 LeguminbsoB. Tender shrubs from Chili. 



A. balsdmica, Bertero. Lvs. 1-1% in. long ; leaflets 10-16 in 

 pairs : racemes 3-8 fld. ; fls. %in. across, golden yellow. B.M. 

 6921. Has the odor of balsam. Not in Amer. trade. 



ADHAT6DA (native name). Acantliacece. Tender 

 shrubs, distinguished from Justicia by the less spurred 

 anthers, and often by the habit and calyx. For culture, 

 see Justicia. 



cydoniaefdlia, Nees. Lvs. opposite on short petioles, 

 ovate; lower lip broadly obovate, purple Brazil. B.M. 

 4962. F.S. 12: 1222. R.H. 1873: 110.- Cult, in Calif. 



A Vdsica, Nees. Lvs. ovate-lanceolate, acuminate: fls. white, 

 streaked red. Ceylon. B.M. 861 as Justicia Adhatoda. 



ADlA.T<n!'UyL(Greeksmwetted).Polypodiacerz. MAIDEN- 

 HAIR FERN. A large genus of widely distributed ferns 

 of tropical countries largely, with polished black or pur- 

 plish stems, mostly smooth foliage to which water will not 

 adhere, and marginal sori attached underneath an inrolled 

 portion of the segment, which thus forms a protecting in- 

 dusium. The requirements of cultivation are plenty of 

 space, good drainage, and a compost of peat, loam *and 

 sand. Of the one hundred or more species, five are na- 

 tives, of which A vedatum is the best known. 



L. M. UNDERWOOD. 



The genus Adiantum furnishes us some of the most 

 useful and popular species of commercial ferns. They 

 are easy of cultivation. They need a slightly shaded 

 position, moderately moist atmosphere, and a temp, of 

 60-65 F. The soil should be composed of rich loam and 

 leaf -mold in equal parts, and should be kept moderately 

 moist. Some of the most useful ones for general pur- 

 poses (given under their trade names) are: A.cemulum, 

 grows about 12-15 in. high, and has very graceful dark 

 green fronds; A. bellum, a dwarf, very compact species 

 6-8 in. ', A. cuneatum, A. cuneatum var. grandiceps, with 

 long, heavily -crested, drooping fronds ; A. cuneatum 

 var. variegatum makes a neat specimen ; A. concin- 

 num, gracefully drooping dark green fronds 15 in. 

 long, with overlapping pinnae ; A. concinnum var. la- 

 turn, of upright growth, is 24 in. high ; A. decorum 

 is very useful, 12-15 in., and has young fronds of a 

 pleasing metallic tint; A. excisum var. multlfidum ; 

 A. formosum ; A. Fergusonii ; A. fragrantissimiim ; 

 A. pubescens ; A. tenerum and var. roseum ; A. Wie- 

 gandi ; A.LeGrandi, very dwarf; A. mundulum, a 

 very neat, dwarf species ; A. rubellum, a dwarf spe- 

 cies with mature fronds light green, young fronds of 

 a deep ruby tint. The above may easily be grown from 

 spores, if sown on a compost consisting of half each of 

 finely screened, clean soil and leaf -mold or peat, and 

 placed in a moderately moist and shady place in the 

 greenhouse in a temp, of 60 F. To be grown most 

 economically, they should be transplanted in clumps 

 of 3 or 4 plants as soon as the first pinnae have appeared, 

 and, as soon as strong enough, potted off, either in 

 clumps or singly. 



Some very desirable species to grow into large, tall 

 specimens are: A. ^Ethiopicum, A. Bausei, A. Collisii, 

 A. Fergusoni, A. formosiim, A. Lathomii, A. Peru- 

 vianum, A. princeps, A. rhomboideum , A. Sanctoe 

 Catharines, A. trapeziforme, and A. Williamsii. The 

 following are also recommended for special purposes: 

 for fern-dishes, A . fulvum; for cutting, A . gracillimum . 

 The following kinds are economically prop, by divi- 

 sion, temp. 65 F. : A. Farley ense, the different varieties 

 of Capillus-Veneris, A. rhodophyllum, A . assimile, etc. 

 Some kinds, as A. dolabriforme, A.caudatum and A. 

 Fsdgeworthii, form small plants on the ends of fronds, 

 which may be detached and potted separately, and if 



33. Fruiting pinnul._o of Adiantum pedatum. 



kept in a close atmosphere will in a short time grow 

 into choice little plants. Temp. 65-70 F. The last three 

 kinds are adapted for hanging baskets. 



NICHOL N. BRUCKNER. 



The following species are in the American trade, the 

 names in italics being synonyms : (A . roseum is an unde- 

 termined horticultural name, possibly referable to A. 



