472 



BEGONIA 



BEGONIA 



INDEX, CONTINUED. 



506. Begonia Gloire de Sceauz (XJi). No. 3. 



HORTICULTURAL ARRANGEMENT OF SPECIES. 



This arrangement often throws together species of 

 no close botanical relationship, but it will aid the cul- 

 tivator to understand the genus. 



I. SPECIES BULBOUS OB ESSENTIALLY so. 



socotrana. 

 II. SPECIES TUBEROUS. 



A. Plant stemless, Ivs. springing directly from the 

 crown or tuber (Davisii, ros&flora, Froebelii, 

 Veitchii, octopetala.) 

 A A. Plant with sis., more or less branching. 



B. Lvs. narrow ^lanceolate to ovate-lanceolate) 



(boliviensis, Sutherlandii). 



BB. Lvs. broad (male to cordate-ovate) (Pearcei, 

 Clarkei, Evansiana, gracilis, Dregei, weltoni- 

 ensis, fulgens). 



BBB. Lvs. orbicular (Baumannii). 

 BBBB. Lvs. various, mostly broad-ovate at base, acu- 

 minate (tuberhybrida). 

 III. SPECIES RHIZOMATOUS. 



A. Plant creeping, trailing, or climbing (glaucophylla, 



scandens). 

 AA. Plant upright, often diffuse. 



B. The picture-lvd. species, grown for the foliage, 

 which is large and prominent and blotched, 

 strongly colored, blistered, or otherwise illus- 

 trated. The Rex set, and others. 

 c. Lvs. oblique, lobed at the base, not peltate (or 

 only slightly so) (Rex, xanthina, Griffithii, 

 Rajah, Auguslinei, dasdalea, speculata, 

 decora, imperialis). 



cc.Lvs. markedly peltate (modica, Gentilii 



Binotii, gocgoensiti). 



BB. The essentially plain-lvd. rhizomatous kinds 

 although some of them are grown chiefly for 

 foliage. 



c. Lvs. prominently lobed, or parted or even 

 divided (ncmifolia, heradeijolia, Sunder- 

 bruchii, rubella, Verschaffeltiana, hera- 

 cleicotyle). 



CC. Lvs. lanceolate to ovate or cordate-ovate to 

 orbicular, not deeply lobed, often entire, and 

 sometimes peltate. 

 D. Foliage small, the les. less than 2 in. wide 



(hydrocotylifolia). 

 DD. Foliage of usual or large size. 



E. The Ivs. peltate (Feastii, nelumbiifolia, 



conchasfolia, Lubbersii, albo-coceinea). 



EE. The Ivs. not peltate (manicata, le/trosa, 



magnifica). 

 IV. SPECIES FIBROUS-BOOTED (Rhizomes small or 0.) 



A. The herbaceous kinds the plant small, succulent 



never becoming very tall or woodu (semperflorens, 



gigantea rosea, Carrierei, Erfurdii, Lyncheana 



Lucianse, Corbeille de Feu). 



AA. The woody or shrubby kinds, usually much 



branched when mature, and often tall. 

 B. Kinds slender, upright, small-leaved, mostly 

 smooth, green or nearly so: Ivs. many and 

 usually not more than 1 in. across, 

 c. Fls. pink or red (fuchsioides, Ingramii, Digs- 



welliana, incarnatn, ascolicnsis). 

 cc. Fls. white, or tinted white (foliosa, knowt- 



leyana, acuminata, albo-picta). 

 BB. Kinds low-growing, diffuse (Nc/unidtiana). 

 BBB. Kinds stiff, succulent white-scurfy (peltata 



venosa). 



BBBB. Kinds mostly tall and erect, some of them becom- 

 ing 8 ft. high, distinctly shrubby and bushy, 

 c. Las. compound, or divided (luxurians, Hems- 

 leyana, platanifolia, digitata, carolinix- 

 folia, diadema). 

 cc. Lvs. not compound, although sometimes 



strongly notched or even lobed). 

 D. Whole plant hairy, or at least so much so 

 as to give it the appearance of being a 

 rough or pubescent species. 

 E. Foliage light green and plant pubescent 



(vitifolia, Engleri). 



BE. Foliage markedly colored above or be- 

 neath, or both. 

 F. Fls. white (echinosepala, erythrophylla, 



Scharffiana, Duchartrei). 

 FF. Fls. colored (Haageana, Credneri, 

 Alleryi, Margarita;, metallica, cath- 

 ayana, dcliciosa, laciniata). 

 DD. Whole plant smooth or becoming so (a few 

 hairs perhaps remaining on the Ivs.), or 

 so much so as to yice it the appearance of 

 being a glabrous species. 

 E. Lvs. medium to large, very broad, fleshy 

 or thick, entire, often peltate (san- 

 guinea). 



EE. Lvs. medium size, stiff, green and shining, 

 often elongated, mostly undulate ur 

 notched. 

 F. Fls. white (angularis, ulmifolia, lon- 



gipes, unilulata, kewensis). 

 FF. Fls. colored (nitida, Teuscheri, Bis- 

 marckii, carminata, polyantha, coc- 

 cinea). 

 EEE. Lrs. medium to large, the margins 



strongly toothed, incised or lobed. 

 F. Fls. white (Madame de Lesseps, olbia}. 

 FF. Fls. colored, varying to tinted u 



(argenteo-guttata, maculata, Thurs- 

 tonii, dichroa, coronata, phylln- 

 manmca, President Carnot, hutrtk 



I. BULBOUS BEGONIAS, AND SEMI-BULBOUS OR SEMI- 

 TUBEROUS DERIVATIVES. 



1. socotrdna, Hook. Fig. 504. A winter-flowering 

 species: st. annual, stout and succulent, forming at 

 the base a number of closely set scales or suppressed 

 Jvs. resembling bulbs: Ivs. dark green, orbicular, pel- 

 tate, 4-7 in. across, center depressed, margin recurved, 



