1H E 
DICTIONARY OF GARDENING, 
An Encyclopedia of horticulture. 
The following are the Abbreviations used: A. flowers; fr. fruit; 
rhiz. rhizomes ; 
l. leaves; h. height; deg. degrees; 
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). 
Syn. Carolinea. ORD. Malvocee. 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). f. white, strong-scented, sh at the tops of 
the branches ; aka owing with 2 5 July. h. 20ft. Brazil, 
1817. A magnificent tree. (B. 
P. insignis (remarkable).* R we 8 0 hikes without and smooth 
within ; petals erect, spreading at the top ; anthers white ; style 
red. July. L, leaflets five to seven, obo vate- oblong. h. 60ft. 
West Indies, Co., 1795. . . 1004, under name of Carolinea 
insignis.) 
P. macrocarpa (large-fruited). fl. large; petals vi long, 
white, silky outside ; tube of calyx short, truncate, glandular at 
base; stamens yellowish-red, equal to the petals. June. 1. , leaf- 
lets seven to eleven, oblong-obovate, cuneated at the base, 
acuminated at top. Mexico, 1840 8 Small tree. (B. M. 4549.) 
P. r ns, peti green, erect; filaments red ; anthers 
yellow. July. l, leaflets seven, e liptical. -oblong, acute at both 
ends. k, IOft. Pc 1798. (B. 1412, under name of Caro- 
linea minor.) 
PACHOULI. See Patchouli. 
PACHYCHILUS. A synonym of Pachystoma 
(which see). 
PACHYDERIS. Included under Nephrodium. 
PACHYLOMA. Included under Hymenophyllum. 
PACHYLOPHUS. Included under @nothera. 
PACHYNE. A synonym of Phaius (which see). 
PACHYNEMA (from pachys, thick, and nema, a 
filament; in allusion to the thick filaments). Orv. Dil- 
leniacew. A genus consisting of only four species of 
Vol. uf . 
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. 
PACHYNEURUM. Included under Parrya. 
PACHYPHYLLUM (from pachys, thick, and 
phyllon, a leaf; referring to the consistence of the 
leaves). ORD. Orchidew. 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. 
PACHYPHYTUM. Included under Cotyledon 
(which see). 
PACHYPODIUM (from pachys, thick, and pous, 
podos, a foot; in reference to the thick, fleshy roots). 
Syn. Belonites. ORD. Apocynacee. A genus com- 
prising about five species of pretty, often fleshy, stove 
shrubs, inhabiting South Africa and Madagascar. The 
species usnally 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 Pachypodiums while in a growing state. 
succulentum (succulent).* fl, corolla red outside, and 
whitish on the upper surface of the limb, tinged with red. June 
to November. “. 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.) 
PACHYRHIZUS (from pachys, thick, and rhiza, a 
root; alluding to the thick, tuberous roots of the plants). 
Syns. Cacara and Tæniocarpum, Orv. Leguminosæ. A 
B 
