Boronia 



( 133 ) 



Botrychium 



BORONIA. 



Description. Dwarf :iml elegant shrubs (ord. Ru- 

 taee;r), usually with very thin and wiry branches, 

 and fine, fibrous roots. Most of them need a 

 greenhouse temperature. Of the species named 

 below heteropliylla, elatior, and megastigma are 

 very popular plants. All are fragrant to some 

 extent, but megastigma is especially noticeable for 

 its powerful perfume. From a decorative point 

 of view heteropliylla is the most valuable. 



Propagation. By cuttings, about 2" in length' 

 of tips of the side shoots, inserted in summer in 

 very sandy soil, in a cold frame, and covered with 

 a bell-glass. No artificial heat is needed, but the 

 bell-glasses must be frequently lifted off and the 

 moisture wiped from them, otherwise the cuttings 

 will damp. 



Soil. 1'eat and loam in equal proportions, with 

 one-sixth of silver sand, and a little crushed 

 charcoal. 



Other Cultural Points. Like all New Holland 

 plants, Boronias are very impatient of drought. 

 Lack of water they should never be allowed to feel. 

 Nor must they be kept very wet, and thus plentv of 

 drainage, and rather small pots, are advisable. 

 The young cuttings should not be given large 

 shifts, a G" pot being quite sufficient for a good 

 specimen. During the growing season, pinching 

 must be practised several times to induce a bushy 

 habit. The plants benefit considerably by a 

 sojourn in the open air from the end of July until 

 the beginning of September, or until "frosts 

 threaten. Afterwards they should be given a 

 light and cool, but not draughty, position in the 

 greenhouse. The only stimulants to be recom- 

 mended are weak soot water and liquid cow 

 manure. 



Principal Species : 



elatior. 4', My., ro. car., 



fragrant. 



heterophylla, 3', My., ro. 

 megastigma, H', spr., 



Other Species : 



alata, '!' to (i', My., ro. 

 crenulata, 2', Jy., red. 

 denticulata, 2' to 6', Mch. 



to Aug., ro. 

 alba, wh. 

 Fraseri, 2', My., pk. (si/n. 



anemonifolia). 

 ledifolia, 1^', Mch., red. 



maroon, yel., very 

 fragrant. 



serrulata, 1' to 6', Je., ro., 

 fragrant, bushy. 



pinnata, 2', Feb., My., 



pk. 

 polygalifolia, 1 ' to 3', 



Mch., Jy., red. 

 pulchella, 1' to 3.}', My., 



pur. (syn. tetrandra). 

 triphylla (xrr ledifolia). 

 viminea, pk. 



BORRERIA. 



Stove sub-shrubs or herbs (ord. Rubiacese), some- 

 times placed under Spermacoce. The perennials 

 may be increased by cuttings placed in heat, and 

 the annuals by seeds sown, also in heat, in spring. 

 Equal parts of loam and leaf soil, with sand, suit 

 the plants. 



Principal Species : 



strirta. very close to verticillata. 

 verticillata, 2', Jy., wh. 



BOSCIA. 



An obscure genus of stove plants (ord. Cappari- 

 de:e), propagated by cuttings of the ripened 

 shoots in spring in brisk bottom heat, and re- 

 quiring equal parts of fibrous loam and pent, with 

 free drainage. Senegalensis, 3', summer, white, is 



an evergreen shrub, with flowers in which the 

 petals are lacking. 



BOSSI/EA. 



Australian shrubs (ord. Leguminosa?) requiring 

 a greenhouse temperature in this country. They 

 are rarely met with under cultivation, although 

 several of them are elegant subjects. Propagation 

 is by cuttings of tips of the half-ripened shoots 

 taken in spring, and placed under a bell-glass in a 

 cool house, or by seeds sown in spring on a gentle 

 hotbed. Equal parts of sand and peat suit the 

 cuttings ; and equal parts of fibrous loam, peat, 

 leaf mould, and sand the established plants. Like 

 all hard-wooded plants, the fine roots resent 

 drought, and the plants should never be allowed 

 to be dry. Fairly firm potting is advisable. 



Principal Species : 



cinerea, 1' to 3', My., yel. linophylla, 1' to 4', Jy. to 



(syns. cordifolia and Aug., or., pur. 



tenuicaulis). ornata, 1' to 2', Ap. (syn. 



disticha, H' to 2', Mch. to Lalage ornata). 



My., yel., red. rhombifolia, 1'to 3', Ap., 

 yel. (syn. lenticularis). 



Other Species : 



ensata (see riparia). prostrata, 6", Aug., yel. 



eriocarpa, 1', My., yel. riparia, 1' to 2', Ap.,yel. 



heterophylla, 1' to 2', Sep. rufa, 6', Aug., pur. (syn. 



(syns. B. lanceolate,, ensata). 



Platylobium lanceola- foliosa, 1' to 3', My., 



turn, and P. ovatura). Je.,yel.,or.(syH.foliosa). 



microphylla, 1' to 2', scolopendria, Plank 



spiny. Plant, 3' to 10', My., 



liunasoides (see prostrata). yel., br. red. 



EOSWELLIA. (OLIBANUM TBEE.) 



Stove evergreen trees (ord. Burseracese), chiefly 

 noteworthy for their economic properties. Thev 

 may be increased readily by cuttings dibbled in 

 sand and placed in a warm propagating frame, 

 and thrive subsequently in loam and peat in equal 

 proportions, with a little sand. 



Principal Species : 

 glabra (see serrata). serrata, 20', sum., wh., 



yel. 

 BOTHY. 



A residence provided in private establishments 

 for the accommodation of under gardeners. A 

 bothy usually consists of sleeping and living 

 rooms. The accommodation provided for young 

 gardeners has improved considerably of late 

 years. 



BOTRYCERAS. 



An obscure genus (ord. Anacardiaceaa) of dios- 

 cious plants with flowers. Synonyms of it are 

 Daphnitis, Laurophyllus, and Laurophillus. The 

 plants do well in a greenhouse in a mixture of peat, 

 loam, and sand, and may be increased by cuttings 

 under a hand-light. 



Only Species : 

 laurinum, 4', Je., wh., grn. 



BOTRYCHIUM. (MOONWORT.) 

 A genus (ord. Filices) of so-called " flowering " 

 Kerns. All are hardy, with the exception of 

 daucifolium, and easy to grow. They are increased 

 by spores. A mixture of sandy loam and leaf soil 

 suits them well, and they like partial shade. A 

 position in a sheltered nook in the rockery is very 

 much to their liking. 



