Calopogon 



(160) 



Calycanthus 



CALOPOGON. 



Dwarf, terrestrial Orchids (ord. OrchidaceEe), 

 bearing one or two grassy leaves on the stem, 

 which terminates in a lax raceme of fairly large 

 flowers of some shade of purple, adorned with a 

 yellow beard on the lip. Increase is obtained by 

 division of the clumps of small tubers. They may 

 be grown in pots in peat and loam, with sand, and, 

 though nearly hardy, do best with greenhouse 

 treatment. 



Principal Species : 

 multiflorus, 1', grh., pulchellus, IT, Jy., pur. 



amethyst, pur. (.'/ Limodorum tuber- 



osum) . 



CALOSANTHUS. 



A tree (ord. Bignoniacefe) classified by some 

 under Bignonia, and by others under Oroxylum. 

 Flowers large, foetid, white, striped purple, and 

 arranged in a long terminal raceme. It is prop- 

 agated by half-ripened cuttings in a propagating 

 case, or in pots plunged in heat and covered by a 

 bell-glass. Loam and a little peat, with sand, will 

 suit it. 



Principal Species : 



indica, 40', st., pur. 



CALOSTEMMA. 



Greenhouse bulbous plants allied to Eurycles 

 (ord. AmaryllideEe). The flowers vary from white 

 to yellow and purple. They are propagated by 

 offsets ; and succeed in fibrous loam, with plenty 

 of sand. Cool greenhouse treatment will meet 

 their requirements. 



Principal Species : 



album, 1', My., wh. purpureum, 1', Nov., dark 



Cunuinghamii (syn. Eury- pur. 



cles Cunninghamii). cameum, 1', Nov., pale 



luteum, 1', Nov., yel. pur. or wh. (syn. car- 



neuin) . 



CALOTHAMNUS. 



A genus of about twenty -two species of greenhouse 

 shrubs (ord. Myrtacese), of a strong-growing char- 

 acter, with leathery, evergreen leaves. The flowers 

 are showy and disposed in spikes, often one-sided, 

 while the stamens are of a beautiful red or scarlet 

 colour. They are propagated by cuttings of young 

 wood just getting hard at the base, in peat and 

 sand under a bell-glass. Sound loam and peat in 

 equal proportions, with a good dash of sand, make 

 a suitable compost. 



Principal Species : 



gracilis, 3', Jy., sc. quadrifidus, 3', Jy., sc. 



lateralis, 3', Jy., Sep., sc. villosus, 3', Jy., sc. 



(syn. longif olius) . 



CALOTIS. 



Perennial, rarely annual, herbs, allied to Brachy- 

 come and Bellium (ord. Compositfe), and tufted or 

 branched. The flower heads are small, with white, 

 blue, or violet rays. Propagation is effected by 

 seeds and by division. Fibrous loam, a little leaf 

 mould, and plenty of sand, make a good compost. 

 Greenhouse treatment is necessary. 



Principal Species : 



cuneifolia, 1', Je., bl. 



CALOTROPIS. 



A genus of about three species of shrubs or small 

 trees (ord. Asclepiadea?), with opposite leaves and 



Caloscordum (see Nothoscordum). 



milky juice. The flowers are large, greenish white 

 externally, and purplish internally. Propagation 

 is effected by seeds in heat ; also by cuttings of 

 half-ripened wood in sand under a bell-glass or in 

 a case. For soil use fibrous loam, a little leaf soil, 

 and plenty of sand. Stove heat is required. 



Principal Species: 

 gigantea, 6' to 15', Aug., procera, G', Jy., wh. 



10., pur. 



CALPURNIA. 



Greenhouse trees or shrubs (ord. Leguminosss), 

 with the flowers and habit of a Laburnum. Prop- 

 agation is effected by taking short side shoots in 

 summer as they are getting firm at the base. For 

 soil, use good loam with a third of peat and some 

 sand. Drain the pots or tubs well. 



Principal Species : 



aurea, 15', grh., gold yel. ; Natal Laburnum. 



CALTHA. 



Generally effective, hard}' perennials (ord. Ranun- 

 culacefe), of much value in marshy places, and by 

 the sides of streams and ponds. Propagated by 

 seeds, sown in spring, or by division of the roots 

 at that season or in autumn. Any common soil 

 will do ; though palustris is more vigorous in that 

 which is of a heavy nature. 



Principal Species and Varieties : 



leptosepala, 1', My., yel. The plant sometimes 

 known by this name, or as biflora, has wh. flowers, 

 and is the var. bicolor of palustris. 



palustris, 1', Ap., yel. There are several hand- 

 some vars. of this native plant, the best being 

 bicolor, wh., monstrosa flore pleno, and nana flore 

 pleno. Alpina, arctica, and asarifolia are botanicnlly 

 forms of palustris also, but are kept distinct for 

 garden purposes. 



Other Species : 



alpina, H', My., yel. asarifolia, 6", My., yel. 



arctica, 1', My., yel. polypetala, 1', My., yel. 



CALYCANTHUS. (ALLSPICE.) 



Desirable," sweet-scented shrubs (ord. Calycan- 

 thaceae), generally hardy in our climate, and pro- 

 ducing rather dull coloured but deliciously fragrant 

 flowers, and oval or longish oval sweet-scented 

 leaves. Usually propagated by layers in summer, 

 but also by seeds sown in a cold frame, either 

 when ripe or in spring. They prefer soil of a peaty 

 nature, but can be grown in any good garden soil. 

 The Allspices are very useful for the garden or for 

 the shrubbery, and it is desirable that they should 

 be screened from cold winds. 



Principal Species and Varieties : 



floridus, G', Je., br., pur. A favourite because of 

 its scent. There are several vars., asplenifolius, 

 ovatus, and variegatus being the best. 



glaucus, 6', My., br., pur. (syn. fertilis). There are 

 several forms, including lasvigatus, oblongifolius, 

 pennsylvanicus, etc. 



occidentalis, 9', Aug., red. A fine species, with 

 very fragrant flowers (syn. macrophyllus). 



prcecox (see Chimonanthus fragrans). 



Calpicarpum (see Kopsia). 



Caltrops (see Tribitlus). 



Caltrops, Water (see Trtvpa). 



Calumba, false (see Cosciniunifenestratum'). 



Calumba root (see Jateorrliha CalumJta). 



Calumba reood (see Cosciniwm fenestratum). 



