1278 



PERFUMERY GARDENING 



PERIPLOCA 



competent women to whom other avenues are closed 

 may find this work available and congenial. 



Intending experimenters should seek further informa- 

 tion in one or more of the books which are before the 

 public. With regard to methods of extraction, Askin- 

 son's "Perfumes and their Preparation" may be con- 

 fidently recommended. Sawer's " Odorographia " (espe- 

 cially the first series) is valuable both to the extractor 

 and the grower. Piesse's "Art of Perfumery " will also 

 be found useful on both sides of the subject. Gilde- 

 meister and Hoffman's "Volatile Oils" is also very valu- 

 able. E. S. STEELE. 



Also consult E. S. Steele's article on "Perfumery 

 Gardening" in the Yearbook of the U. S. Dept. of 

 Agric., for 1898. Vol. 22, part 2 of the Journal of the 

 Royal Hort. Soc. (London, 1898) contains a list of per- 

 fumes and 'plants that yield them, and also a list of 

 books on perfumes. 



PERlLLA (said to be a native name in India). 

 LaMatce. Perilla Nankinensis is distinct among all 

 tender bedding plants by the color of its foliage. The 

 leaves are a dark, wine-purple, with a bronzy luster. 

 These colors are more or less toned with green, espe- 

 cially in young plants. The Perilla is an annual herb, 

 growing about 1% ft. high. It is considerably used in 

 subtropical beds and for the back of ribbon borders. 

 It is sometimes planted next to a dusty miller or other 

 white-leaved plants for the sake of contrast. The 

 foliage has an odor suggesting cinnamon. In Japan 

 the Perilla is of economic importance for the production 

 of oil. Perillas need a sunny or at least half -sunny 

 position. They thrive under the treatment given 

 half-hardy annuals. Sow the seeds thinly and cover 

 nearly an inch. Avoid planting Perillas too closely; 

 leggy specimens are wretched. The fls. are incon- 

 spicuous and produced in autumn. Before the intro- 

 duction of the Coleus, this plant was much used as an 

 ornamental flower-garden plant, and is still used largely 

 in the gardens of northern Europe, where the Coleus 

 makes but a stunted growth. But in our warmer sum- 

 mers it is displaced by the more brilliantly colored and 

 free-growing Coleus. 



Perilla is placed by Bentham and Hooker next to the 

 American genus Collinsonia, with which it agrees in 

 the following characters: flowering calyx of 5 nearly 

 equal teeth ; fruiting calyx declinate, 2-lipped ; anterior 

 lobe of the corolla larger; perfect stamens 4. The 

 main point of difference lies in the nutlets; those of 

 Perilla are netted-veined, while those of Collinsonia are 

 smooth. Also the anther cells of Collinsonia are divari- 

 cate, while those of Perilla are finally merely divergent. 

 Perilla is placed in the same subtribe with Mentha, but 

 belongs to a group in which the whorls of fls. are not 

 axillary (as is usually the case in the Mentha group), 

 but are spicate or racemose. 



ocymoides, Linn. Also spelled ocimoides. The typical 

 form has Ivs. green on both sides and is worthless for 

 gardens. Lvs. opposite, rarely speckled with brownish 

 purple, only slightly wrinkled, base wedge-shaped or 

 narrow; blade broadly ovate or roundish, pointed or 

 blunt, hairy or not, entire or variously cut at the mar- 

 gin. In the wild, it is a coarse, often shaggy plant, 2-4 

 ft. high, with Ivs. 3-6 in. long, petioles 1-3 in. long: 

 racemes 3-8 in. long: corolla white or reddish, 2 lines 

 long: fruiting calyx ^ in. long. Himalayas, Burma, 

 China, Japan. B.M. 2395. Sparingly run wild. 



Var. Nankinensis, Voss (P. Nankinensis, Decne. P. 

 aryuta, Benth.). Slightly hairy, rarely glabrous: Ivs. 

 dark purple-brown, with a bronzy luster; base wedge- 

 shaped (rounded in strong-growing specimens); blade 

 ovate, acute, coarsely and deeply saw-toothed, margin 

 wavy. Occasionally seedlings are green when young. 

 R.H. 1852:60; 1879, p. 272. Forms of this variety are: 

 (1) Var. laciniata (P. laciniata, Hort. Thorburn. P. 

 Nankinensis fdliis atropurpureis laciniatis, Hort. Be- 

 nary) has Ivs. cut nearly to the middle, foliage un- 

 dulate, wrinkled or crisped. Colors said to be more 

 intense. Int. about 1872. P.G. 2:77. (2) Var. macro- 

 phylla (P. Nankinensis macropnylla compdcta, Hort.) 

 is a large-lvd. form characterized by its almost "bell- 

 shaped "form. The Ivs. are wavy -fringed. Habit com- 



pact. (3) Var. elatior (P. Nankinensis macrophylla 

 eldtior, Hort. Benary) is a taller form of var. macro- 

 whylla. (4) Var. variegata (P. Nankinensis foliis varie- 

 gatis, Hort.) differs in having the foliage spotted with 

 white. (5) Var. microphylla (P. Nankinensis micro- 

 phylla nlgricans, Hort. Benary) is a small-lvd. form 

 int. about 1899. WM- ScOTT and w M 



1722. Pensteria elata Holy Ghost Plant. 

 (Flower X %.) 



PERlPLOCA (Greek, peri, around, and plekein, to 

 twine; alluding to the twining habit). Asclepiadacece. 

 Twining, rarely upright, glabrous shrubs, with opposite, 

 deciduous or evergreen entire Ivs. or sometimes leafless, 

 and with rather small usually dark-colored fls. in axillary 

 or terminal cymes. Most of the species are subtropical, 

 but the only species cult, in this country is hardy north 

 to New York, and can be grown even in Canada when 

 trailing on the ground and somewhat protected during 

 the winter. It is a vigorous and high -growing climber, 

 with handsome dark green and shining foliage, and is 

 well suited for covering arbors, trellis work and .trunks 

 of trees. It bears fragrant fls. in summer and keeps its 

 foliage until late in fall. It thrives in any well-drained 

 soil and prefers sunny positions. Prop, by seeds or by 

 greenwood cuttings in summer under glass ; also by 

 layers. 



Twelve species, distributed from S. Eu. to trop. Africa, 

 China and E. India. Shrubs, with milky juice: fls. in 

 axillary or terminal cymes; calyx 5-lobed; corolla 5- 

 parted, bearing inside at the base a 5- or 10-lobed 

 crown; stamens 5, with very short filaments and with 



