184 



BROWALLIA 



BRUNFELSIA 



striated, dark purple segments, pale lilac beneath. 

 Colombia. B.M. 4339. P.M. 16: 290. -There are blue, 

 violet and white-fld. varieties. Var. major, Hort., has 

 violet fls. 2 in. across. R.B. 20: 240. B. gigantea, Hort., 

 is a florist's variety, with very deep blue fls. and long- 

 blooming habit. Int. into Amer. trade in 1899, 



AA. Corolla-segments short, %-lobed or notched: fls. 

 smaller. 



B. Upper Ivs. not stalked: fls. all in loose racemes: 



calyx not hairy. 



grandifldra, Graham (B. Rwzlii, Hort.). Stem and 

 Ivs. glabrous, or in the upper part of the plant minutely 

 clammy-puberulent : Ivs. ovate, the lower petioled : 

 calyx-teeth oblong, somewhat obtuse, equal, scarcely 

 shorter than the tube, spreading: corolla white or pale 

 blue, the limb wider than in B. demissa. Peru. B.M. 

 3069. In B. Roe-zlii, from Rocky Mts., some fls. are 

 white, some pale blue. No dark blue or violet colored 

 forms are known. 



BB. Upper Ivs. stalked: fls. solitary and axillary 

 below, racemose above. 



c. Calyx hairy. 



demissa, Linn. (B. elata, Linn.). Fig. 272. Stem and 

 Ivs. pubescent or glabrous : Ivs. ovate, with longer 

 stalks than in B. grandiflora : calyx-teeth acute, un- 

 equal, much shorter than the corolla-tube. The Ivs. are 

 variable, cuneate, rotund, or rarely cordate. S. Amer. 

 B.M. 34 and 1136. The following are now referred to 

 the above : B. Americana, elata, elongata, nervbsa. 

 This species is the commonest, and is usually known as 

 B. elata. Blue, violet, white and dwarf forms are cult. 



cc. Calyx sticky or clammy. 



viscosa, HBK. (B. pulche"lla and B. Czerniakowski- 

 ana, Hort.). Plant viscous -pubescent : Ivs. short-peti- 



272. Browallia demissa (X %). 



oled, ovate, rough-hairy on both sides : pedicels a little 

 shorter than the calyx : calyx teeth very clammy, oblong, 

 shorter than the corolla tube. The Ivs. are similar to 



B. demissa, but the habit is stiffer and the fls. more 

 numerous. The calyx teeth spread less than in B. 

 grandiflora. So. Amer. 



B. Americana, Linn., is considered by some a separate 

 species from the above, but in Germany, where most seeds of 

 annual flowers are grown, it is used by Siebert and Voss (in 

 Vilmorin's Blumengartnerei) to include B. demissa, B. elata, 

 and other forms. B. Jamesonii, Benth. = Streptosolen Jame- 

 sonii. B. pulchella, Hort., is likely to be either B. grandiflora 

 or B. viscosa. \V". M. 



BROWNEA (Patrick Brown wrote a history of Ja- 

 maica). Legumindsce. Several small evergreen trees of 

 trop. Amer., allied to Amherstia, but little known in the 

 Amer. trade. Lvs. alternate and pinnate : fls. showy, 

 red, in dense terminal or-axillary clusters. Cult, in 

 hothouses. B. Ariza, Benth. (B. Princeps, Lind.) has 

 drooping heads of scarlet fls. B. grandiceps, Jacq., tts. 

 red, in capitate spikes : Ifts. about 12 pairs, lance-oblong. 

 B. Rosa- de- Monte, Berg., fls. scarlet, in dense heads : 

 Ifts. 2-3 pairs, oval, acuminate. 



BBUCKENTHALIA (after S. von Bruckenthal, an 

 Austrian nobleman). Ericaceae. Low, heath-like, ever- 

 green shrub, 5-8 in. high, with small, linear, whorled 

 Ivs.: fls. rosy pink, nodding, in short, terminal racemes. 

 Only one species B. spiculifldra, Reichb.,in the moun- 

 tains of S. E. Europe. A pretty little plant for rock- 

 eries, quite hardy, and requiring the same treatment as 

 hardy Ericas. ALFRED REHDEB. 



BRUGMANSIA. Consult Datura. 



BRITNELLA (probably from old German breune or 

 braiine, quinsy, which it was thought to cure). Often 

 written Prunella. Labiatce. Low-growing, hardy, her- 

 baceous perennials, with fls. usually violet or purple, 

 produced all summer on heads an inch or more high. 

 They are best suited for the rockery and slightly shaded 

 parts of the border, succeeding in almost any soil that 

 is not excessively dry. 



vulgaris, Linn. SELF-HEAL. HEAL-ALL. Lvs. ovate- 

 oblong, entire or toothed, usually pubescent : corolla 

 violet or purple, rarely white, %-%in. long, not twice 

 as long as the purplish calyx. Amer., Eu., Asia. 

 D. 255. One of the most cosmpolitan of all plants, be- 

 ing too common in the wild to be cult. A form with 

 variegated Ivs. is rarely found wild. 



grandiflora, Jacq. (B. Pyrendica, Phillipe) . Lvs. often 

 toothed, especially at the base : corolla over 1 in. long, 

 more than twice as long as the calyx. Eu. B.M. 337. 

 The best of the garden kinds. 



Webbiana, Hort. Lvs. shorterthan in B. grandiflora, 

 and not so pointed : fls. very freely produced, more 

 than twice as long as the calyx, bright purple. June- 

 September, j. B. KELLEK and W. M. 



BRUNFELSIA (Otto Brunfels, physician and botanist 

 of the ]6th century). Syn., Franciscea. Solanacece. 

 More than 20 trees and shrubs of tropical America, a few 

 of which are grown in warm glasshouses. Lvs. entire, 

 oblong, often shining : fls. in terminal cymes or clus- 

 ters, or solitary, large and showy, fragrant ; corolla 

 with 5 rounded and nearly equal spreading lobes (or two 

 of them a little more united) ; stamens 4, in the throat 

 of the corolla, the anthers all alike : fr. berry-like. 

 Brunfelsias are usually winter-flowering plants. The 

 wood must be well ripened before flowering begins. 

 Grow in a rather sandy compost. Of easy culture. Re- 

 quire a night temperature of 50. They bloom best when 

 pot-bound. Prop, by cuttings from the new growth in 

 spring. 



Hopeana, Benth. (Franciscea Hopeana, Hook. F.uni- 

 fldra, Pohl. ). Compact and dwarf: Ivs. lance-oblong, 

 alternate, paler beneath : fls. solitary or in 2's, with a 

 whitish tube and a bluish violet or purple limb. Brazil. 

 B.M. 2829. -Grows 12-18 in. high. One of the least 

 worthy species. 



paucifldra, Benth. (F. calyclna, Hook.). Branches 

 terete and glabrous, with abundant evergreen foliage : 

 fls. in large trusses, purple, with a lighter ring about 



