LOASE^E. III. LOASA. IV. CAIOPHORA. V. SCYPHANTHUS. VI. MENTZELIA. 



65 



t. 34. L. multifida, Ruiz et Pav. fl. per. 5. t. 443. b. Scales 

 2-lobed. Flowers small, yellow. 

 Tnining Loasa. PI. tw. 



29 L. TRIPHY'LLA (Juss. 1. c. p. 27. t. 5. f. 2.) leaves for the 

 most part cut into 3 stalked, oblong, toothed segments : a few 

 tripartite ; pedicels extra-axillary ; calycine lobes elliptic-oblong. 

 O- H. Native of Peru, on the Andes, in the high plains. 

 Tratt. tab. 1. t. 21. H. B. et Kunth, nov. gen. amer. 6. p. 

 118. Stems ascending. 



Three-leaved Loasa. PI. ascending, 1 foot. 



30 L. PAPAVERIFOLIA (H. B. et Kunth, nov. gen. amer. 6. p. 

 118.) leaves trifoliate; segments or leaflets stalked, oblong, 

 toothed : middle leaflet large, pinnatifid ; flowers opposite the 

 leaves, disposed in something like racemes ; lobes of calyx ellip- 

 tic, 3-nerved. Q. H. Native of the Andes, about Quindiu. 

 Stem simple, ascending. Flowers white. There is a figure in 

 the Flora Mexicana which agrees with this plant, except that the 

 petals are drawn bifid at the apex. 



Poppy-leaved Loasa. PI. 1 foot. 



Cult. All the species of Loasa bear such beautiful flowers, 

 that they are all worth cultivating for ornament, but they are 

 so full of stings that it is impossible to handle them. The 

 seeds of the annual species should be sown early in spring in 

 the open ground, and the plants so raised will flower and pro- 

 duce seed the same season ; or the seeds may be sown in pots, and 

 reared in a hot-bed, and the plants may afterwards be planted out 

 in the open border, in any convenient situation. All the species 

 require a rich light soil and a warm situation. Some of the 

 species are said to be perennial ; we suppose all would be so if 

 they were protected from frost. 



IV. CAIO'PHORA (meaning not explained). Presl. in 

 reliq. Haenk. 2. p. 43. 



LIN. SYST. Polydelphia, Polydndria. Calyx 5-parted ; seg- 

 ments jagged. Petals 5, unguiculate, concave. Scales 5, peta- 

 loid, emarginate, or 4-toothed at the apex, each furnished with 

 4 sterile filaments inside. Stamens numerous, disposed in 5 

 bundles. Style trigonal, permanent ; stigmas 3, conniving. 

 Capsule ovate-oblong, with elevated spiral ribs, crowned by the 

 reflexed calyx, 1-celled, many-seeded, opening at 3 of the su- 

 tures. Placentas marginal in the valves, but at length distinct 

 from them. Seeds angular, echinated by bristles or reticulated. 

 Usually climbing plants, with the habit of Loasa, beset with 

 stinging hairs. Peduncles 1-flowered. Flowers yellow. This 

 genus differs from Loasa and Blumenbachia in the dehiscence of 

 the capsule, in the scales being furnished with 4 sterile filaments 

 instead of 3, and in many other points. There are several plants 

 now referred to the genus Blumenbachia which belong to this ge- 

 nus; viz. B. grandiflora, which is Caiophora contorta, Presl. reliq. 

 Haenk. 2. p. 42. and B. punicea, which is evidently the Caidphora 

 circiifolia, Presl. 1. c. t. 54. and carduifolia, Presl. 1. c. p. 42. 



1 C. CORONA TA (Hook, et Am. in bot. misc. 3. p. 238.) 

 stems short; leaves opposite, petiolate, pinnate; segments bi- 

 pinnatifid : lobules denticulated; peduncles axillary, 1-flowered, 

 elongated ; calycine lobes pinnatifid, with linear segments, longer 

 than the ovarium. H. Native of Chili, on both sides of 

 the Cordillera of the Andes, between Mendoza and Chili, at an 

 elevation of 8500 to 11,000 feet. The furrows of the fruit are 

 nearly straight, or hardly spiral, so that this species partakes ill 

 some degree of the characters of Loasa. Loasa coronata, Gill. 

 mss. ex Arnott, in Cheek, in edinb. journ. 3. p. 274. C. ab- 

 sinthaefolia, Presl. in reliq. Haenk. 2. p. 43. 



Crowned Caiophora. PI. prostrate, rising 1 to 2 feet. 



Cult. See Loasa for culture and propagation. 



V. SCYPHA'NTHUS 



VOL. III. 



S, scyphos, a cup, and 



anthos, a flower ; in reference to the form of the flower). Sweet, 

 fl. gard. t. 238. 



LIN. SYST. Pulyadelphia, Polydndria. Calyx deeply 5- 

 parted, permanent, equal. Petals 5, inserted in the base of the 

 calyx, on very short claws, concave, equal. Scales inserted with 

 the petals, peltate at the apex, lobed, 3-horned. Stamens nu- 

 merous, perigynous, the 10 exterior ones destitute of anthers; 

 and these are placed by twos opposite the scales, and are longer 

 than the rest, which are disposed in 5 fascicles opposite the 

 petals ; anthers 2-celled, erect. Ovarium prismatic, silique- 

 formed ; style one, erect, trigonal. Capsule prismatic, silique- 

 formed, crowned by the tube of the calyx, 3-valved at the apex ; 

 seeds oval, wrinkled. A twining herb, having its branches beset 

 with retrograde strigae. Leaves opposite, pinnatifid ; superior 

 ones bipinnatifid, hispid from hairs. Flowers sessile, erect, 

 solitary, yellow. 



1 S. E'LEGANS (Sweet, 1. c.). 0. H. Native of Chili. 

 Stem dichotomous. Segments of leaves obtuse, ciliated. Gram- 

 matocarpus volubilis, Presl. symb. bot. 1. p. 61. t. 38. 



Elegant Scyphanthus. Fl. Aug. Sept. Clt. 1824. PI. cl. 



Cult. An elegant plant. For its culture and propagation, 

 see Loasa. 



VI. MENTZE'LIA (in honour of Christian Mentzelius ; 

 physician to the Elector of Brandenburgh ; published Centuria 

 Plantarum Circa Gedanum, 4to. 1650. and Index nominum Plan- 

 tarum Multilinguis, fol. 1682. 1696. and 1715.). Plum. nov. 

 gen. 40. t. 6. Lin. gen. no. 670. Juss. ann. mus. 5. p. 24. 

 Lam. ill. t. 425. H. B. et Kunth, nov. gen. amer. 6. p. 119. 

 D. C. prod. 3. p. 343. Onagrae spec. Tour. 



LIN. SYST. Icosandria, Monogynia. Calyx permanent, with 

 a cylindrical, somewhat 5-furrowed tube, and 5 lanceolate or 

 subulate, equal lobes (f. 13. rf.). Petals 5 (f. 10. a.), equal, 

 inserted in the upper part of the tube of the calyx. Stamens 

 indefinite (f. 13. e.), multiple the number of the petals, and 

 inserted with them ; filaments free, usually disposed in 5 bun- 

 dles ; anthers erect, ovate, bilocular. Ovarium adnate to the 

 calycine tube. Styles 3, connected to the middle or to the top, 

 marked by 3 corresponding stripes. Capsule turbinately cylin- 

 drical, crowned by the calycine lobes (f. 13. /.), 1-celled, 3- 

 valved at the apex. Seeds 3-6-9, or irregular in number in con- 

 sequence of abortion, inserted in 3 parietal placentas. Erect, 

 branched, dichotomous herbs, rough from bearded or glochidate 

 stiff hairs. Leaves alternate, or nearly opposite, coarsely toothed. 

 Flowers of a deep orange colour, solitary, almost sessile in the 

 forks of the stem, or pseudo-axillary from one of the branches 

 being abortive, expanding in the height of the sun. 



* Stamens 20-25, all nearly equal. Seeds 3-6. Flomers smaller. 



1 M. A'SPERA (Lin. spec. ed. 1. p. 516.) petals roundish-oval, 

 obtuse, hardly longer than the calycine limb, but much exceed- 

 ing the stamens. Q. F. Native of the Antilles (Plum. ed. 

 Burin, t. 174. f. 1.); Jamaica (P. Browne, jam. p. 249.) ; St. 

 Domingo (Bertero). Seeds 5 ; parietal smooth, compressed. 

 Hairs on plant glochidate at the apex. 



Rough Mentzelia. Fl. July, Aug. Clt. 1733. PI. 1 to 2 ft. 



2 M. OLIGOSPE'RMA (Nutt. in Sims, bot. mag. t. 1760.) petals 

 oval, acuminated, longer than the calyx, but very little longer 

 than the stamens. % . G. Native of Louisiana, on the banks 

 of the river Missouri, among rocks. M. aurea, Nutt. gen. amer. 

 1. p. 300. Root tuberous, succulent. Seeds 3, smooth, linear- 

 oblong. Hairs on plant bearded their whole length. 



Few-seeded Mentzelia. Fl. May, Jul. Clt. 1812. PL 1 to 2 ft. 



* * Stamens 30-100, the 10 exterior ones the longest. Seeds 

 6-9. Flowers larger than those of the last section. 



3 M. HISPIDA (Willd. spec. 2. p. 1176.) petals obovate, mu- 

 K 



