1666 



SHRUBBERY 



SICANA 



in a continuous border there should be places where 

 shrubs of larger size occupy the full width so as to 

 bring growth of considerable height into the lawn. The 

 arrangement should be varied so as to avoid all 

 monotony, but in securing this variation a mixture of 

 miscellaneous shrubs of all kinds does not give as good 

 an effect as broader areas of single species or genera 



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2325. 



Planting may relieve the angularity of foundations.- 

 trumpet creeper. 



slightly interspersed at the margin with shrubs of 

 another kind. Straight rows should be avoided. A 

 laborer or a novice when told this will arrange the 

 plants in a zigzag manner, thinking that he is placing 

 them irregularly, the result often being almost the 

 same as that of two rows. If the group is being planted 

 along a straight line, as the boundary of a lot, the dis- 

 tances of the successive plants from this line might be 

 somewhat as follows: two feet, four feet, five feet, 

 three feet, one foot, and the distances apart, measured 

 parallel with a fixed line, should vary also. 



The ideal condition of a group of shrubbery is to have 

 all the individual plants healthy, so that the foliage will 

 appear fresh and of good color. This foliage should 

 extend down to the surface of the adjacent lawn or walk, 

 and shade the ground underneath so completely that 

 nothing will grow there. The leaves which fall with 

 the approach of winter should be allowed to remain as 

 a perpetual inulch. The desired result cannot be 

 secured the first year the shrubs are planted unless 

 they are of large size and moved but a short distance. 

 The aim in caring for a new plantation should be to 

 secure thrifty plants, and this care, like the preparation 

 of the soil, shouhl be such as is given to a field of corn. 



Very little trimming should be done. If a bush is tall 

 and spindling it may be well to cut it off next to the 

 ground and allow it to sprout again. If there is any 

 dead wood it should, of course, be cut off. But when a 

 shrub is healthy and vigorous, let it grow in its own 

 graceful way. If it encroaches upon the walk, cut 

 away the encroaching branch near the root so that the 

 mark of the knife will not be noticed. Such treatment 

 will help to retain the winter beauty of the branches. 



The value of shrubbery is not appreciated as it should 

 be. Those who are interested in the subject will do 

 well to read wiiat is found in the various books on 

 landscape gardening. Bulletin No. 121 of Cornell Uni- 

 versity Agricultural Experiment Station, the various 

 articles on shrubs and shrubbery to be found in the ten 

 volumes of "Garden and Forest "and in other liorticultu- 

 ral journals. O ^ Simonds. 



SIBBALDIA (Robert Sibbald, Scotch naturalist). 

 \Rosace(f, About 5 species of alpine plants, one of which 

 cas been suggested as suitable for rock gardens. The 



genus is reduced by Bentham and Hooker to a section 

 of Potentilla, but Britton and Brown keep it separate 

 chiefly on the ground that the pistils are only 4-12 in 

 number instead of very numerous as in Potentilla. Sib- 

 baldias are densely tufted, hardy perennial herbs with 

 woody stems. The Ivs. have prominent stipules and 3 

 leaflets, each of which is characteristically 3-toothed at 

 the apex. The fls. are about 34 in. 

 across or less, and have 5 minute yel- 

 low petals much smaller than the re- 

 markable calyx, which has 5 broad 

 , lobes, alternating with 5 smaller and 



■^» narrower lobes or bracts. 



-^ ^^ procumbens, Linn., ranges from the 



arctic regions to the summits of the 

 White Mts. and in the Rockies comes 

 as far south as Utah. It is also found 

 in arctic and alpine Europe and Asia. 

 B. B. 2:217. -This plant is recom- 

 mended by some persons, but is not 

 known to be advertised for sale in 

 America. -^^ jyj 



SIBTH6RPIA (John Sibthorp, pro- 

 fessor of botany at Oxford, author 

 of Flora Graeca, published 180G-15). 

 Scrophtilaridcece. A genus of about 

 6 species of hardy or tender peren- 

 nial, creeping herbs mostly from the 

 tropical regions, with alternate or 

 tufted roundish, long-petioled Ivs. and 

 yellow, orange, or red fls. solitarj' on 

 axillary or fascicled pedicels : calyx 4- 

 5-cleft; corolla subrotate, with a very 

 short tube, 5-8-cleft; stamens usually 

 equal to the number of corolla-lobes; 

 anthers sagittate: capsule membran- 

 ous, compressed, loculicidally dehis- 

 cent, the valves splitting to the middle. 



Europaea, Linn. A hardy trailing perennial with very 

 slender stems : Ivs. orbicular, less than 3^ in. across, 

 7-9-lobed: fls. small, on rather short pedicels, the 2 

 upper lobes of the corolla yellowish, the 3 lower pink. 

 Deep woods, Europe. — Offered in 1893 by John Saul, 

 Washington, D.C. Var. variegd.ta is cult, abroad. 



F. W. Barclay. 

 SICANA (Peruvian name). Cucurbit Acew. Two or 3 

 species of tropical American tall-climbing tendril-bear- 

 ing vines, allied to Cucurbita, but differing in having 

 wide-spreading or reflexed calyx-lobes and the anthers 



-A billow of 



2326. The common laurel of the East, Kalmia latifolia (X 34)- 



not united. S. odoritera, JNaud., the Curuba of the 

 tropics, has been introduced as the Cassabanana, but 

 long known in the South. Fig. 2327. It is a very quick- 

 growing and interesting ornamental vine: plant gla- 



