BEGONIA 



BB. Color of fls. rose-red or white. 



79. rosaeflora, Hook. Stemless : petioles, scapes, 

 bracts, and stipules bright red: Ivs. green, 2-4 in. wide, 



BEGONIA 



149 



215. Begonia Socotrana (X 



No. 72. 



on stout, bairy petioles, 2-6 in. long, orbicular, reniform, 

 concave, margins lobed, red, toothed : fls. 2 in. across, 

 rose-red. Peru. B.M. 5680. -Light colored seedlings of 

 this species gave rise to Queen of Whites, put into com- 

 merce in 1878, and destined to be a most important 

 factor in subsequent garden forms of the same color. 

 Int. in 1867. 



80. geranioides, Hook. Stemless, rootstock fleshy : 

 Ivs. radical, reniform. 6 in. across, lobed and toothed, 

 green, hairy, petioles 8 in. long: peduncles erect, 6-12 in. 

 long, reddish, hairy, bearing a lax panicle of Us., each 

 l%in. across, pure white, with a button-like cluster of 

 yellow anthers. Natal. B.M. 5583. -Planted in a border 

 IT) a sunny greenhouse, this is a fine Begonia, flowering 

 profusely during Oct. and Nov. Int. to Kew in 1866. 



AA. St. present. 



B. Color of fls. cinnabar-red, orange-red, bright red or 

 scarlet. 



81. Boliviensis, A. DC. St. herbaceous, succulent, 

 2 ft. high, branching : Ivs. lanceolate, acuminate, ser- 

 rate, 3-5 in. long : fls. in drooping panicles, cinnabar- 

 scarlet, fuchsia-like ; males twice as large as females. 

 Bolivia B.M. 5657. -The first Tuberous Begonia intro- 

 duced into England, 1864. 



82. Vditchii, Hook. St. very short, thick, fleshy, green : 

 Ivs. orbiculate, cordate, lobed and incised, margins cili- 

 ated, green, principal veins radiating from a bright car- 

 mine spot near the center, under side pale green ; petiole 

 thick, terete pilose: fls. 2%in. in diam., cinnabar-red: 

 capsule smooth, unequal wings. Peru. B.M. 5663. F.S. 

 22: 2:*26. One of the progenitors of the Tuberous race. 

 Int. 1867. 



83. Ch61soni, Hort. (B. Sedenix. Boliviensis). St. 

 fleshy, 2 ft. high : Ivs. oblique, lanceolate, irregularly 

 lobed : fls. large, orange-red, drooping. Gn. 4: 109. 

 Int. by Veitch in 1870. 



84. Clarkei, Hook. St. purplish, fleshy, stout : Ivs. 

 obliquely-cordate, serrate : fls. in pendulous racemes, 

 abundant, large, bright red. Bolivia. B.M. 5675. 

 Resembles .Z?. Veitchii. It was the seed parent of Vesu- 

 vius and Emperor, two important and useful varieties 

 for bedding out. 



BB. Color of fls. rose-red or pink. 



85. Evansiana, Andr. (B. discolor, R. Br. B. grdndis, 

 Dry.). St. herbaceous, branching, smooth, 2 ft. high : 

 Ivs. ovate-acute, sub-cordate, lobed, margins denticu- 

 late, green above, underside and petioles red, peduncles 

 branching, axillary : fls. numerous, flesh-colored, large. 

 Java, China, Jap. B.M. 1473. A handsome and almost 

 hardy species. Int. in 1804 to Kew. Little cult. now. 



86. Baumannii, Lemoine. Tubers as large as ostrich 

 eggs : Ivs. large, orbicular, with short, thick petioles: 

 peduncles 18 in. high, bearing panicles of 4-6 fls., which 

 are rose-red, 4-petalled, from 3-4 in. across, and fragrant 

 as roses. Bolivia, Gt. 40: 1348 : 42, p. 25. A.F. 7: 561. 

 G.F. 5: 77. It is described as plentiful in the moist val- 

 leys of the Cordilleras, where it is eaten by cattle. 

 Sweet-scented. Distributed by Lemoine in 1890. 



87. gracilis, H.B.K. (B. bicolor, Watson. B. diversi- 

 folia, R. Grab.). St. erect, not branched, succulent: 

 Ivs. thinly scattered along sts., almost heart-shaped, 

 slightly hairy, lobed, denticulate, ciliate : fls. on short, 

 axillary peduncles, pink. Mex. B.M. 2966. In axils of 

 Ivs. between stipules a cluster of bulbils is borne. 

 These may be gathered and sown as seeds. Along with 

 its varieties, annulata, diversifolia, Martiana, etc., it 

 makes a very beautiful summer-flowering greenhouse 

 Begonia. Int. by P. Neil, of Cannon Mills, Edinburgh, 

 in 1829. 



88. Pdarcei, Hook. St. 1 ft. high, succulent, branch- 

 ing : Ivs. lanceolate, cordate, acuminate, toothed, gla- 

 brous above, tomentose beneath, pale red on under sur- 

 face : fls. in loose, axillary panicles, large, bright yel- 

 low. Bolivia. B.M. 5545. It has been the chief factor 

 in the production of the hundreds of yellow, buff and 

 orange-colored garden forms. Int. in 1865. 



SUPPLEMENTARY LIST TUBEROUS-ROOTED. 



(A) The following tuberous-rooted species are not 

 known to be in the Amer. trade, but they are in cultiva- 

 tion in greater or less purity : 



89. cinndbarlna, Hook. Sts. annual, short, green, zigzag, 

 slightly downy : Ivs. on short petioles, obliquely ovate, lobed 



216. Begonia Gloire de Sceaux IX %), No. 76. 



