RUBIACEJE. CLXXIII. PALICOUREA. CLXXIV. CHASALIA. 



603 



* * * Leaves opposite, sessile. 



55 P. RI'GIDA (H. B. et Kunth, nov. gen. amer. 3. p. 370.) 

 glabrous; branches bluntly tetragonal; leaves elliptic, acutish, 

 rounded at the base, almost sessile, coriaceous, shining : stipulas 

 twin on both sides, connected by a short ligula, almost linear, 

 acute ; panicles on long peduncles, spreading ; corollas clothed 

 with very fine down ; stamens exserted. Jj . S. Native of New 

 Andalusia, on arid mountains, tropical Brazil, and at Caraccas. 

 Cham, et Schlecht. in Linnaea. 4. p. 15. Psychotria rigida, 

 Willd. in Rcem. et Schultes, syst. 5. p. 192. Psych, byrso- 

 phylla and Psych, rigida, Spreng. syst. 1. p. 747. and 745. and 

 perhaps P. strepens, Mart. Flowers yellow, varying from pen- 

 tamerous to hexamerous. 



Sti/ Palicourea. Fl. Aug. Sept. Clt. 1820. Shrub 3 feet. 



Cult. For culture and propagation see Psychotria, p. 599. 



CLXXIV. CHASA'LIA (in honour of D. Chasal, once 

 governor of the Mauritius, a great lover of natural history). 

 Comm. mss. Juss. mem. mus. 6. p. 379. A. Rich. mem. soc. 

 hist. nat. par. 5. p. 166. t. 16. f. 1. D. C. prod. 4. p. 531. 

 Psychotria, Coffee, and Nonatelea species, Sieb. 



LIN. SYST. Pentdndria, Monogynia. Calyx with an ovate 

 tube, and an urceolate rather tubular limb, with an entire or 5- 

 toothed border ; lobes or teeth joined together at length. Corolla 

 with an elongated terete equal tube, and 5 short acutish erect or 

 spreading lobes, which are usually callous at the apex, and val- 

 vate in aestivation. Anthers 5, inserted in the middle or top of 

 the tube of the corolla, inclosed or sometimes a little exserted. 

 Stigmas 2, linear. Berries ovate, crowned by the limb of the 

 calyx, containing 2 pyrenae, hardly ribbed even in the dry state ; 

 pyrenae coriaceously-chartaceous or horny, oblong, marked by 

 a furrow inside, convex on the outside, and furnished by a 

 longitudinal crest in the middle, which is extended beyond the 

 base, 1-seeded. Seed erect, with the transverse section arched, 

 lunate, and compressed. Embryo at the base of a horny albu- 

 men. Glabrous shrubs, all natives of the Mauritius. Leaves 

 opposite or 3 in a whorl. Stipulas ovate, undivided or com- 

 bined into a 4-cleft sheath. Flowers tubular, crowded and ses- 

 sile on the tops of the branches, or disposed in terminal panicled 

 corymbs. This genus differs from Psychotria in the corolla 

 being elongated, and from Palicourea in the corolla not being 

 gibbous at the base, and from both in the urceolate or cam- 

 panulate calyx. The habit is that of Gcertnera, but the characters 

 are very different. 



* Flowers sessile, and crowded on the tops of the branches. 

 Leaves opposite. Chasalia, Juss. 



1 C. CAPITA'TA (D. C. prod. 4. p. 531.) leaves opposite, oval, 

 or obovate, terminating in a very short point ; stipulas ovate, 

 acuminated, permanent, longer than the petioles ; flowers dis- 

 posed in spicate heads at the tops of the branches, fascicled, ses- 

 sile. Tj . S. Native of the Mauritius. Psychotria capitata, 

 Sieb. fl. maur. no. 56. Corolla tubular, 8-10 lines long, with 

 acute hardly open lobes. Leaves 2 inches long, and 12-15 lines 

 broad. Stipulas 8-9 lines long. Fruit unknown. Perhaps the 

 same as Chasalia Commersonii described by Jussieu. 



Capitate-flowered Chasalia. Shrub. 



** Flowers disposed in terminal panicled corymbs. Leaves op- 

 posite. 



2 C. PSYCHOTRIOIDES (D. C. prod. 4. p. 531.) leaves opposite, 

 obovate-oblong, bluntish, coriaceous, cuneated at the base, on 

 very short petioles ; stipulas ovate, obtuse, about equal in length 

 to the petioles ; panicles corymbose, pedunculate : rachis and 

 branches compressed, opposite. fj . S. Native of the Mauri- 



tius. Psychotria? Sieb. fl. maur. 2. no. 57. Internodes half 

 an inch long. Leaves 2^ to 3 inches long, and 15 lines broad. 

 Corolla in the unexpanded state 7 lines long. Calyx bluntly 

 5-toothed. 



Psychotria-like Chasalia. Shrub. 



3 C. coFFEoloEs (D. C. 1. c.) leaves opposite, oblong, bluntish, 

 cuneated at the base ; stipulas ovate, acute, a little longer than 

 the petioles ; panicles terminal, pedunculate, somewhat corym- 

 bose, with the rachi and peduncles compressed, and the branches 

 opposite. J; . S. Native of the Mauritius. Coffea capitata, 

 Sieb. fl. maur. exsic. no. 335. Leaves 3-J to 4 inches long, and 

 12-15 lines broad. Stipulas 5 lines long. Calyx with 5 acute 

 short teeth. Corolla in the unexpanded state 5 lines long. 



Coffee-like Chasalia. Shrub. 



4 C. FONTANE'SH (D. C. 1. c.) leaves opposite, obovate-ob- 

 long, bluntish, attenuated at the base ; stipulas oval, obtuse, de- 

 ciduous, shorter than the petioles ; panicles terminal, peduncu- 

 late, rather corymbose, with the rachi and branches compressed. 

 T? . S. Native of the Mauritius, and probably of the island of 

 Bourbon. Coffea cymosa, Willd. in Roem. et Schultes, syst. 5. 

 p. 201. ? Very nearly allied to C. coffeoides, but the stipulas 

 are different. Petioles 4-6 lines long. Fruit ovate, crowned by 

 the calyx. Flowers unknown. 



Desfontaines 's Chasalia. Shrub. 



5 C. STIPULA V CEA (D. C. prod. 4. p. 532.) leaves opposite, ob- 

 ovate, acutish, cuneated at the base ; stipulas combined in the 

 middle into a 4-cleft sheath, equal in length to the petioles or 

 longer than them : lobes acuminated, 2 of which are within the 

 leaves, and 2 between the leaves ; corymbs terminal, trichoto- 

 mous, with elongated branches, which bear a head of the flowers 

 each at their tops. Tj . S. Native of the Mauritius. Psychotria, 

 Sieb. fl. maur. 2. no. 271. Leaves 6 inches long. Corolla 6-7 

 lines long. Limb of calyx short, 5-toothed. 



Large-stipuled Chasalia. Shrub. 



6 C. DIVARICA'TA (D. C. 1. c.) leaves opposite, obovate-oblong, 

 acutish, cuneated a long way at the base, and petiolate ; stipulas 

 ovate, obtuse, membranous, deciduous, 2 or 3 times shorter 

 than the leaves ; panicles corymbose, one-half shorter than the 

 leaves ; lobes of corolla short, acute, straight. fj . S. Native 

 of the Mauritius. Coffea divaricata, Tausch. ex Sieb. fl. maur. 

 2. p. 271. in herb. Dunant. Mussoe'nda lanceolata, Poir. diet. 

 4. p. 392. ? and hence the Chasalia Bourboniaa, Comm.? Leaves 

 5-6 inches long, and 15 lines broad. Petioles about an inch 

 long. Calyx urceolate, bluntly and shortly 5-toothed. Corolla 

 6 lines long. 



Divaricate Chasalia. Shrub. 



* * * Flowers disposed in terminal panicled corymbs. Leaves 

 3 in a whorl. 



7 C. BORYA'NA (D. C. prod. 4. p. 532.) leaves 3 in a whorl, 

 elliptic, acute at both ends, on long petioles ; stipulas deciduous ; 

 panicles trichotomous, a little shorter than the leaves ; lobes of 

 corolla short, ovate, spreading ; anthers exserted a little from 

 the throat ; calyx subtruncate. \i . S. Native of the Mauri- 

 tius and the Island of Bourbon, where it was collected by Bory 

 de St. Vincent. Sieb. fl. maur. 2. no. 253. Petioles 12-16 

 lines long. Leaves 4 inches long and 2 broad, with the nerves 

 often white. Corolla 6 lines long. 



Bory de St. Vincent's Chasalia. Shrub. 



8 C. GRANDIFOLIA (D. C. 1. c.) leaves 3 in a whorl, elliptic, 

 acuminated at both ends, rather membranous, on long petioles ; 

 stipulas ovate, acuminated, rather longer than the petioles ; pa- 

 nicles thyrsoid, terminal, on short peduncles, fj . S. Native of 

 the Mauritius. Psychotria grandifolia, Sieb. fl. maur. 2. no. 

 55. but not of Rcem. et Schultes. Branchlets bluntly trigonal. 

 Petioles 7-10 lines long. Leaves 5 inches long and l broad. 



4 H 2 



