ACT1NOPTERIS 



ADENOCARPUS 



23 



ACTIN6PTERIS (ttktln, r;iy, and pteris; the fronds 

 rad i at el y cut ). Syn., Actiniopteris. Polypodiacece . 

 Greenhouse ferns from India, resembling miniature fan- 

 palms. The sori are linear-elongate and submarginal, 

 and covered with indusia. A. raditita, Link, is the only 

 recognized species. L. M. UNDERWOOD. 



ADA (a complimentary nam&). Orchiddcece ; tribe 

 Vdndece. A genus of epiphytes containing two species. 

 Petals and sepals slightly spreading from half their 

 length ; labellum parallel with the column and united to 

 its base. Found at high elevations on the Colombian 

 Andes. Useful for the coolhouse, where they may be 

 grown together with Odontoglossums, blooming in no 

 dt'tiiiite season. 



aurantiaca, Lindl. Fig. 32. Pseudobulbs 2-3 in., 

 ovate to ovate-oblong, subcylindrical or slightly com- 

 pressed, tapering toward the summits, bearing 1-3 nar- 

 row leaf -blades 6-12 in. long: petals and sepals narrow, 

 pointed, channeled; labellum half as long as the petals: 

 scape drooping, bearing racemes of cinnabar-red fls. 



Lehmanni, Rolfe. Leaves marbled with gray : label- 

 lum white. Not much in cultivation. A recent species. 



OAKES AMES. 



The Adas grow at the altitude of 8,500 ft. To grow 

 them successfully, a house that can be kept very cool in 

 summer is necessary, one having a northern exposure, 

 such as is constructed for Odontoglossums being best, as 

 the two plants are found growing together. Shading 

 will be found necessary in summer during the hottest 

 weather, preferably by roller shades, that can be rolled 

 up in dull weather, as by this means a current of cool 

 air is constantly passing over the glass. The tempera- 

 ture inside the structure can be kept below that outside 

 in hot weather by careful airing and spraying. A. au- 

 rantiaca is the best known, and is much valued for its 

 bright orange-colored spikes of bloom, which last a long 

 time. A. Lehmanni is very rare in cultivation, and is 

 -listinguished, among other characteristics, by its white 

 up and by being a summer-blooming plant, while its 

 companion species flowers early in spring. The usual 

 fern fiber and sphagnum moss compost will be found 

 best suited for their cultivation, taking care that the 

 plants are never dry at the roots, either in summer or 

 winter. E. O. ORPET. 



ADAM-AND-EVE. See Sempervivum tectorum, and 

 Aplectrum hyemale. 



ADAMIA. SeeDichroa. 



ADAM'S APPLE. See Citrus Limetia, Musa para- 

 disiaca, and Taberncumonlana coronaria. 



ADAM'S NEEDLE. See Yucca. 



ADANSONIA (named after M. Adanson, French bota- 

 nist). Malvaceae. The Baobab is said to have the thick- 

 est trunk of any tree in the world. Adansonia has few 

 congeners familiar to the horticulturist: fls. large, pen- 

 dulous ; petals 5, white, obovate stamens numerous ; 

 ovary 5-10-celled : fr. oblong, woody, indehiscent, filled 

 with a mealy pulp in which are numerous seeds. 



digitata, Linn. BAOBAB TREE. Height not more than 

 60 ft. ; diam. said to be sometimes 30 ft. or more : Ivs. 

 palmate, with 3 leaflets in young plants, and 5-7 in older 

 ones : fls. 6 in. across, with purplish anthers on long ax- 

 illary, solitary peduncles. Africa. B.M. 2791. Rarely 

 cultivated in extreme S. Fla., where fr. is 9-12 in. long, 

 and called "Monkey's Bread." 



ADDER'S-TONGUE. See Erythronium. 

 ADDER'S-TONGUE FERN. See OpMoglossum. 



ADENANDRA (from the glandular anthers). Rutacece. 

 Small summer-flowering, tender shrubs from the Cape 

 of Good Hope. Lvs. alternate, small, leathery, subses- 

 sile, entire, glandular-dotted : fls. white or rosy ; petals 

 obovate. Prop, by cuttings from the ripened wood. 



fragrans, Roem. & Schult. (Didsma frdgrans, Sims). 

 BREATH OF HEAVEN. Height 2-3 ft.: Ivs. oblong, ob- 

 tuse, dark green above, whitish beneath, with a glandu- 

 lar, denticulate margin: fls. rosy. B.M. 1519. A fa- 

 vorite in Calif. 



ADENANTHERA (from the deciduous pedicillate 

 gland on each anther). Leguminosce. Tender, unarmed 

 evergreen tree, cult, in greenhouses only for its eco- 

 nomic interest, and also in Calif, in the open air. Prop, 

 by seeds, which should be softened in hot water previous 

 to sowing. 



Pavonina, Linn. RED SANDAL-WOOD TREE. Leaflets 

 about 13: fls. in an axillary spike. Trop. Asia, where it 

 grows to a tree of great size. The red lens-shaped 

 "Circassian Seeds" are curiosities with travelers, and 

 are used for necklaces, etc. 



32. Ada aurantiaca. 

 a shows the lip and column. 



ADENOG ALMNA (glandular covering; ref earring to 

 leaves, etc.). Bignonidcece. Tender climbing" shrub, 

 closely allied to Bignonia. Grown in hothouses, requir- 

 ing considerable moisture. Prop, by cuttings in frames. 



comosum, DC. St. rough, punctate: Ivs. opposite, tri- 

 foliolate; petioles thickened at junction with the blades: 

 racemes so densely clothed at first with large bracts as 

 to suggest the aments of the hop-vine ; fls. 2 in. across, 

 brilliant yellow, trumpet-shaped ; upper lip of 2, and 

 lower lip of 3 rounded, waved lobes. Braz. B.M. 4210. 



ADENOG ARPUS (from the glandular pod, which 

 easily distinguishes it from allied genera). Leguminbsce. 

 Shrubs, rarely small trees, more or less pubescent: Ivs. 

 alternate, trifoliolate, small: fls. papilionaceous, yellow, 

 in terminal racemes ; calyx 2-lipped : fr. a glandular pod, 

 oblong or linear, compressed. About 14 species in S. Eu., 

 Asia Minor, N. and W. Afr., Canary Isl. Low shrubs, 

 rarely more than 3 ft., of spreading habit, with handsome 

 fls. produced profusely in spring ; very attractive when 

 in full bloom. They require a sunny position and well 

 drained soil. They are especially adapted for temperate 

 regions, but do not bear transplanting well, and should 

 be grown in pots until planted. They are also hand- 

 some greenhouse shrubs, and grow best in a sandy com- 

 post of peat and loam. Prop, by seeds and greenwood 

 cuttings in spring; sometimes also by layers and grafting. 



frankenioldes, Choisy. (A. anagyrus, Spreng.). 

 Branches pubescent : Ivs. persistent, crowded ; leaflets 

 linear-oblong, complicate : fls. crowded, in short racemes ; 

 calyx glandular, the lateral segments of the lower lip 

 longer than the middle one, exceeding the upper lip. 

 Teneriffe. 



intermedius, DC. Branches villous : Ivs. deciduous, 

 grouped ; leaflets obovate or oblong-lanceolate : fls. in 

 elongated racemes ; calyx glandular, middle segment of 



