Bestrepia 



'267 ) 



Retiniphyllum 



(we li;_'ure) is cultivated even in botanic gardens. 

 It needs a warm greenhouse temperature. 



RESTREPIA. 



Cool house Orchids (ord. Orchidaceae), with tufted 

 stems and creeping branches. In liabit the Pleuro- 

 tiiallises and the Kestrepias can scarcely be dis- 

 tinguished from each other. Propagation, by 

 division and imported pieces. Soil, living sphag- 

 num and lumpy, fibrous peat, with free drainage. 

 Shallow pans or baskets suspended from the roof 

 suit most of the species well. 



temperatures in the winter, that can be thus 

 treated. A temperature about the freezing point 

 is needed. Lilies of the Valley, Liliums, Spiraeas, 

 and Azalea mollis are a few subjects that can be 

 thus treated successfully, and it is practical! v 

 certain that there are many others. 



A long suspension of growth is weakening, but 

 periods of under a year appear to have little appre- 

 ciable ill effects. Retarded Lily of the Valley 

 crowns start more quickly than those which have 

 not been retarded, and the flowers are fully as fine. 

 Retarded plants can be had at reasonable prices. 



SUB-VEKTICILLATfS. 



Principal Species : 



[NOTE. s. sepals, p. 

 dayaua, 5" to 8", sum., 



s. and p. br., yel., '. 



yel., pur. 

 ecuatlorensis, 4" to fi" 



sura., s. and p. wh. 



yel., pur , I. maroon 



yel. 

 elejjans, 4" to (i", sum. 



upper s. and p. wh. 



pui 1 ., lowers, audl. yel. 



dotted pur. 

 maculata, 4' to 6", 8. and 



p. yel., red, I. small 



('/. anteiinifera). 

 ophionephala. wh., pk., 



Militnry, 1" across (,>/'/. 



Pleurothallis ophioce- 



= petals, 1. = lip.] 



phala. Purpurea is a, 

 var. 



pauclurata, 3" to 5", Ivs. 

 pur beneath, flowers 

 smaller than in macu- 

 lata, wh., pur. 



reichenbachiana, '2" to 3", 

 sum., yel., s. tipped pur. 



sanguinea, 2" to 5", win. 

 crim. . yel. 



gemma, 2" to 5", 2" 

 across vertically, sum., 

 wh.. crim., pur., yel., 1, 

 small. 



striata, 3" to 6", upper s, 

 and p. maroon, lower 

 s. and 1. maroon, striped 



yel. 



RETARDING. 



Retardation is the prolongation of the resting 

 period. This is only possible where the plants are 

 kept in a temperature, lower than is required by 

 the plant to make new growth. It is obvious that 

 it is only hardy subjects which are used to low 



Itcsurri'rlhni riuiits (.r .\niixtntica Hierochun- 

 linii. Mi'xi-mliri/iint/ii'.niiim Tripolium, and 

 Selayinelln I 



It is possible to have certain flowers practically at 

 all seasons of the year. 



It is often necessary to delay the blooming of 

 plants tor several days, or even weeks, so :is to 

 ensure a display upon a certain date. Much can 

 be done by placing these plants in houses with a 

 north aspect, or under the shelter of a north wall. 



Flowers which are fugacious when the plants 

 are in hothouses have their lives lengthened if 

 placed in cool and sunless surroundings after 

 expansion. 



RETINIA. 



Small moths of the group Stigmonotidae, several 

 species of which are destructive to Conifers. They 

 vary from " to 1" in spread of forewings. Although 

 turionana has been given the name of Pine Bud 

 Moth because the larvae eat into the buds and tips 

 of the shoots, the species duplana, occultana, 

 n -siniina, buoliana. and pinicolana equally deserve 

 it. The shoots are hollowed out, and either die or 

 become distorted, gouty specimens. Resinana is 

 also known as the Resin Gall Moth, because a gall 

 of resin is formed about each larva. Destruction 

 by fire of all infected shoots is the only remedy. 



RETINIPHYLLUM (syn. COM.MI- 

 ANTHUB). 



Stove shrubs (ord. Rubiacese), with showy flowers 

 and edible berries. Propagation, by cuttings of 



