LYTHRARIEiE. XIII. Dipzusodon. XIV. Physocalymna. XV. Decadon. XVI, Nes^a. XVII. Crenea. 721 



crowded, coriaceous, prmnose ; pedicels shorter than the leaves ; GmeL syst. 677. Ell. sketch. 1. p. 543. D. C. prod. S. p. 



bracteas broadly ovate, a little longer than the tube of the calyx ; 

 outer calycine teeth linear 



90. — Lythrura species of Lin. — Ncsae'a species of Kunth, 



stamens 12. ^ . S. Native of Lin. syst. Decdndria, Monogynia. Calyx hemlypherically 

 Brazil,^ in the provjnce of Minas Geraes. Frielandia rotundi- can)panulate,bractless atthebase,10-toothcd; inner 5 teeth erect, 



outer 5 or those from the sinuses spreading and horn-formed. 

 Petals 5, alternating with the inner teeth of the calyx. Stamens 



Ovarium si 



folia, Mart. mss. Leaves longer than the internodes. Petals 

 apparently white from the dried specimen. Bracteas large. 



Round-leaved Diplusodon. Shrub 1 to 2 feet. 



37 D. sPEciosus (D. C. 1. c.) quite glabrous ; branches terete ; 

 leaves sessile, roundish-ovate, acute, many-nerved, coriaceous ; 

 pedicels 1 -flowered, short; bracteas ovate, a little longer than 

 the tube of the calyx ; outer calycine teeth reflexed ; stamens 

 24. h . S. Native of Brazil. 



10, 5 of which are very long. 

 3-celled. Capsule covered by the calyx. 

 less. — A downy North American herb, 

 in a whorl. 



ssilc, nlmost globose, 

 Seeds minute, wing- 

 Leaves opposite, or 3 



Nesse'a speciosa, Kunth, nov. 



Peduncles 3 or many-flowered, furiiibhed with i 

 bracteas at the origin of each pedicel. Petals purple. 



1 D. verticilla'tum (Ell. 1. c. with an excellent description). 

 gen. amer. 6. p. 191. in a note. Dubyse amelastomoides, D. C. 1/. B. H, Native from Canada to Florida, in swamps, Lv- 

 inherb. mus. par. July, 1827. 



Shewy Diplusodon. 

 Cult 



Shrub 1 to 2 feet. 



All the species of Diplusodon are very elegant when 

 in flower, but none of them have yet been introduced to our 

 gardens. However, should they ever be, we would advise their 

 being grown in a mixture of loam, peat, and sand, draining 

 the pots in which they are planted well with sherds ; they will 

 be easily propagated by cuttings, like other plants of the 

 same order. Judging from the elevated situations in which 

 they naturally grow in the provinces of the mines in Brazil, 

 Jt should imagine that many of them will stand in the open air 

 mwarm sheltered situations, especially against a south wall, at 

 least they will be sufficiently hardy to stand as greenhouse 

 plants, although we would recommend, on their first introduc- 

 tion, that they be treated as stove plants, until their hardiness be 

 ascertained. 



thrum verticillatum, Lin. spec. 641. Anonymos nquatica, Walt, 

 car. 137. Decodon aquiuicus, Gmel. syst. (577. Nesae'a ver- 

 ticillata, H. B. et Kunth, nov. gen. amer. G. p. 191. Leaves 

 petiolate, lanceolate. Peduncles many-flowered. Flowers pur- 

 ple, disposed in aggregate, corymbose whorls. 



^//or/erf-flowered Decadon. Fl. July, Sept. Clt. 1757. PI. 

 2 to 4 feet. 



Cult. See Lythrum for culture and propagation, p. 713. It 

 is a pretty border-plant when in flower. 



r 



XVI. NES^'A (A^e5<^«, in mythology, asea-nymph), Comm. 

 in Juss. gen. p. 332. D, C. mem. soc. gen. 3. pt. 2. p. 74. 

 prod. 3. p. 90. — Nesae^a species of Kunth. — Lythrum species 

 of Lin, 



LiN. SYST. 



Mono 



Calyx liemis- 



MNA 



2nd KaXvjifia, calymma, a covering ; in reference to the inflated 

 bracteas, which inclose the flower before expansion). Pohl, in 

 flora, 1827. p. 152- with a figure, and pi. bras. 1. p. 99. tt. 92, 

 93^ D.C. prod. 3. p. 89. 



Mono 



pherically-campanulate, bractless at the base, 8-12-lobed: the 

 inner 4 or 6 lobes erect, and the outer 4-6 or those from the sinu- 

 ses spreading and horn-formed. Petals 4-6, alternating with the 

 erect lobes. Stamens 8-12, nearly equal. Ovarium sessile, 

 almost globose, 4-celled. Capsule covered by the calyx. Seeds 

 minute, wingless. Herb glabrous. Peduncles 3-flowered, fur- 

 nished with 2 bracteas at the origin of each pedicel. Petals 



blue. 



base, campanulate, inflated, 8-toothed, without any teeth from the 1 N, trifloua (H. B. et Kunth, nov. gen. amer. 5. p. 191. 



sinuses. Pptf»]« fi. nvnl wifli nn/fid^tplv rrpnated marorins. in- in a note). 1/. B. S. Native of the Mauritius, in humid 



Petals 8, oval, with undulately crenated margins, in- 

 serted in the top of the tube of the calyx. Stamens 24, rising 



from the base of the 'calyx beneath the germ. Ovary globose. 



Style 



filiform, exserted ; stigma capitate 

 probably 1 -celled. — A tree, with red wood. 



Capsule globose, 

 Leaves oval, quite 



entire, scabrous, somewhat plicate at the apex, feather-nerved, 

 pjjose on the veins beneath. Panicle large, spreading, thyrsoid, 

 *Uh opposite branches. Bracteas glabrous, roundish, mucro- 

 ^ate, concave, inclosing the flower-bud before expansion. Calyx 

 purplish. ~ 



^ 



Corolla purplish red. 

 1 P. floribu'nda (Pohl, pi. bras. 1. p. 100. tt. 92, 93.). 

 • S. Native of Brazil, in the province of Goyaz. Leaves 



opposite, decussate, on short petioles. Flower-bud inclosed by 

 2 inflated bracteas before expansion. The flowers resemble 

 those of a species of Lagerstrce'mia. The wood is rose- 

 coloured, and much esteemed by cabinet makers. It is the 

 <=£ ebrated rose-wood of commerce. In Germany this wood is 

 called Rosenholz. In the province of Goyaz in Brazil Cego 

 !^achado ; in the province of Rio Janeiro Pao de rosa ; and in 

 'England rose-wood. ' 



^widle-Jlowered Physocalymna or Brazilian Rose-wood. Tree 

 '6 to 30 feet. 



^^h. This tree is most splendid when in flower. It has not 

 yet, like the species of the last genus, been introduced to our 

 8«fdens. The treatment recommended for the species of Di- 

 miodon will answer this tree also. 



XV. DE'CADON (from hKac, dekas, ten, and oSovq o^ovroc, 

 ^ous odontos, a tooth ; in reference to the 1 teeth of the calyx). 



VOL. II. 



grassy places, not of America, as had been formerly supposed. 

 Lythrum triflorum, Lin. fil. suppl. p. 249. exclusive of the 

 country. Ly'thrum triantha. Vent. herb. Trotula triirithis, 

 Comm. herb. Willem. herb. maur. 3. with an excellent descrip- 

 tion. Leaves opposite, oblong-lanceolate, obtuse or acute, on 

 short petioles. Flowers 3, on short pedicels, on the apex of the 



peduncle. Corolla blue. 



Three-fowered Nesaea. Fl. Aug. Clt. 1802. ^ PI. 2 to 3 ft. 

 Cult. See Diplusodon for culture and propagation. 



XVH. CRE'NEA (meaning not explained by Aublet). Aubl. 



guian. 1. p. 5^3. Lam. ill. t. 407. Meyer, prim, esseq.p. 18fi. 



D. C. prod. 3. p. 90. 



LiK. SYST. Ocldndria, Monogyn'm. Calyx urceolate, 4-cleft ; 

 lobes broad, triangular, but none are produced at the smuses. 

 Petals 4, inserted between the lobes of the calyx. Ovarium 

 roundish. Style filiform. Stigma oblong. Capsule 1-5-celled, 

 covered by the calyx, many-seeded. Seeds very minute. — 

 Herbs or subshrubs. Leaves opposite, glabrous. Peduncles 

 axillary, 1 or many-flowered.. Flowers white. In the capsules 

 examined by Aublet they were 5-celled, but in those examined 

 by Meyer and De Candolle, only 1 -celled at maturity. Perhaps 

 the capsules are 4-8-celled at first, but as they become more ma- 

 ture the dissepiments vanish, and the capsule becomes therefore 



1 C. mari'tima (Aubl. guian. \. c. t. 209.) stem ncarlv her- 

 baceous, nodose ; branches tetragonal ; angles wmged ; leaves 

 ovate-oblong ; peduncles many-flowered. If . B. S. Native of 



4Z 



