THE 



DICTIONARY OF GARDENING, 



En JEnc^clopaebfa of Iborttcultuve. 



The following are the Abbreviations used : fl. flowers ; fr. fruit ; I. leaves ; A. height ; deg. 

 rhiz. rhizomes; cau. caudex; sti. stipes. 



The Asterisks () indicate plants that are especially good or distinct. 



PACHIDENDRON. Included under Aloe (which see}. 

 PACHIRA (the native name of the trees in Guiana). 

 STN. Carolinea. ORD. Malvaceae. A genus comprising 

 about fifteen species of very handsome, dense-foliaged, 

 stove trees, inhabiting tropical America. Calyx cup- 

 shaped, truncate or obsoletely toothed ; petals white or 

 reddish, oblong or linear, occasionally 6in. to 12in. long, 

 often tomentose without ; peduncles axillary, one-flowered, 

 bi- or tri-bracteolate. Leaves digitate, with three to 

 nine entire leaflets. The species (of which the four here 

 described are the best) are commonly known as Caro- 

 lineas ; they thrive best in a rich, loamy soil. Propa- 

 gated by large cuttings, taken off at a joint, with the 

 leaves intact, and inserted in sand, under a bell glass, 

 in heat. 



P. alba (white). /. white, strong-scented, disposed at the tops of 

 the branches ; calyx flowing with honey. July. A. 20ft. Brazil, 

 1817. A magnificent tree. (B. M. 4508.) 



P. insignia (remarkable).* fl. pale red, downy without and smooth 

 within ; petals erect, spreading at the top ; anthers white ; style 

 red. July. I., leaflets five to seven, obovate-oblong. A. 60ft. 

 West Indies, &c., 1796. (L. B. C. 1004, under name of Ccrfolvnea 

 insiffnis.) 



P. maorocarpa (large-fruited), fl, large ; petals very long, 

 white, silky outside ; tube of calyx short, truncate, glandular at 

 base ; stamens yellowish-red, equal to the petals. June. L, leaf- 

 lets seven to eleven, oblong-obovate, cuneated at the base, 

 acuminated at top. Mexico, 1840. Small tree. (B. M. 4549.) 

 P. minor (smaller). ./Z. .petals green, erect; filaments red ; anthers 

 yellow. July, I, leaflets seven, elliptical-oblong, acute at both 

 ends. h. 10ft. Mexico, 1798. (B. M. 1412, under name of Caro- 

 linea minor.) 



FACHOULI. See Patchouli. 



PACHYCHILUS. A synonym of Pachystoma 

 (which see). 



PACHYDERIS. Included under Nephrodium. 



PACHYLOMA. Included under Hymenophyllum. 



PACHYLOPHUS. Included under (Enothera. 



FACHYNE. A synonym of Phaius (which see). 



PACHYNEMA (from pachys, thick, and nemo, a 

 filament ; in allusion to the thick filaments). ORD. Dil- 

 leniacece. A genus consisting of only four species of 



Vol. III. 



Pachynema continued. 



Australian, suffruticose, often glabrous herbs. Flowers 

 yellow ; sepals and petals five ; pedicels lateral, short, 

 recurved. Leaves reduced to minute scales, or rarely a 

 few at base of the stem, trifid. P. complanatum the 

 only species introduced is more curious than beautiful. 



PACHYNEURTJM. Included under Parrya. 



PACHYFHYLLUM (from pachys, thick, and 

 phyllon, a leaf ; referring to the consistence of the 

 leaves). ORD. Orchideae. A small genus of about six or 

 seven species of stove, epiphytal orchids, natives of the 

 Andes of South America. Flowers inconspicuous, bi- 

 fariously disposed on short, axillary, few-flowered spikes, 

 rarely reduced to one flower ; the conniving perianth with a 

 free, undivided, sessile lip, having a single tubercle at its 

 base, and two at its apex, a petaloid column, and two 

 pollen masses. Leaves thick and fleshy, arranged in two 

 ranks, and overlapping each other. For culture, see 

 Maxillaria. The two species introduced P. distichum 

 and P. procumbens are of botanical interest only. 



FACHYPHYTUM. Included under Cotyledon 

 (which see). 



PACHYPODIUM (from pachys, thick, and pous, 

 podos, a foot; in reference to the thick, fleshy roots). 

 STN. Belonites. ORD. Apocynaceai. A genus com- 

 prising about five species of pretty, often fleshy, stove 

 shrubs, inhabiting South Africa and Madagascar. The 

 species usually seen under cultivation is the one here 

 described. It thrives best in a mixture of lime rubbish, 

 sand, and loam. Propagated by cuttings, inserted in 

 sand, under a hand glass. Water should be sparingly 

 applied to Pachypodinms while in a -growing state. 

 P. sncculentnm (succulent).* fl., corolla red outside, and 



whitish on the upper surface of the limb, tinged with red. June 



to November. I. oblong, tomentose beneath, glabrous above. 



Stem tuberous at base. Cape of Good Hope, 1813. (B. M. 5543 ; 



B. R. 1321 ; L. B. C. 1676, under name of P. tuberosum.) 



PACHYBHIZUS (from pachys, thick, and rhiza, a 

 root ; alluding to the thick, tuberous roots of the plants). 

 STNS. Cacara and Tceniocarpum. ORD. Leguminosoe. A 



B 



