640 



CHELONE^E. I. PENTSTEMON. II. CHELONE. 



3391. Plant a little branched, minutely downy. Calycine seg- 

 ments oblong-lanceolate. Corolla purple, nearly glabrous out- 

 side. Valves of anthers ciliated towards the apex. 



Richardson's Pentstemon. Fl. June, Sept. Clt. 1825. PI. 

 1^ foot. 



38 P. DIBSE'CTUM (Ell. car. 2. p. 129.) leaves opposite, ses- 

 sile, compoundly dissected : the segments linear, and generally 

 blunt ; flowers in panicles. If.. H. Native of Georgia, Louis- 

 ville. Stem slightly pubescent. Corolla purple; segments of 

 the upper lip larger than those of the lower, and more blunt. 

 Stamens inclosed ; anthers downy, or hairy. ? 



Dissected-\ea\ed Pentstemon. PI. 2 feet. 



39 P. SCOULE'RI (Dougl. in bot. reg. 1277.) suffruticose ; 

 leaves obovate-lanceolate, ser- 

 rulated : upper ones quite en- FIG. 64. 



tire; peduncles 1 -flowered, ra- 

 cemose ; calyx downy, with 

 acuminated segments ; corolla 

 ventricose; anthers woolly. If. 

 H. Native of North-west 

 America, on the Kettle falls 

 of the Columbia. Branchlets 

 pilose. Corolla purple, nearly 

 & inches long ; palae open. Mr. 

 Douglas considered this a spe- 

 cies of Chelone from the woolly 

 anthers ; but it has the an- 

 gular seeds of Pentstemon. (fig. 

 64.) 



Scouler's Pentstemon. Fl. 

 May, July. Clt. 1827. Shrub 

 2 to 3 feet. 



SECT. III. GENTIANOI'DES (from gentiann, gentian ; and idea, 

 like; habit of species.) Sterile filament glabrous. Anthers 

 glabrous. Leaves narrow, entire, glaucous : radical ones 

 crowded. Flowers panicled. 



40 P. HUMBOLDTII ; stems simple, downy ; leaves linear, quite 

 entire, glabrous ; peduncles 2-flowered, disposed in a panicle ; 

 calycine segments roundish-ovate, acute; corollas beardless; 

 sterile filament glabrous. I/. H. Native of Mexico, in moun- 

 tain places between Puerto de Varientos and Santa Rosa, at the 

 altitude of 1350 hexapods. Chelone imberbis, H. B. et Kunth, 

 nov. gen. amer. 2. p. 363. Leaves bluntish, 2-3 inches long, 

 and 1J to 2 lines broad. Calyx downy. Corollas similar to 

 those of P. barbatum, but smaller and beardless. Stamens ex- 

 serted. 



Humboldt's Pentstemon. PI. 1 to 1^ foot. 



41 P. BARBA V TUM (Nutt. gen. amer. 2. p. 51.) glaucous, glabrous; 

 stems branched ; leaves connate, sessile, linear-lanceolate, quite 

 entire, very long, channelled : radical ones crowded, spatulate ; 

 peduncles axillary, opposite, 2-flowered : the whole forming a 

 panicle ; limb of calyx scarious ; corolla bearded on the 

 lower lip with yellow hairs. I/ . H. Native of Mexico. Che- 

 lone barbata, Cav. 3. p. 22. t. 242. Ker. bot. reg. t. 116. 

 Chelone ruelloides, Andr. bot. reg. t. 34. Corollas showy, 

 scarlet outside, and white inside, drooping. Sterile filament 

 glabrous. 



Bearded-flowered Pentstemon. Fl. June, Sept. Clt. 1794. 

 PI. 4 to '5 feet. 



42 P. CENTRANTHIFOLIUM (Benth. scroph. ind. p. 7.) gla- 

 brous, glaucous ; leaves ovate-lanceolate, quite entire, cordately 

 stem-clasping at the base; peduncles axillary, many-flowered, 

 disposed in an elongated, terminal panicle ; corolla tubular, pen- 

 dulous, glabrous ; throat naked ; limb almost equally 5-parted ; 

 sterile filament beardless. "I/.. H. Native of California. Co- 



rolla scarlet. Chelone centranthifolia, Benth. in hort. trans, 

 ser. 2d. vol. 1. p. 481. Lindl. bot. reg. t. 1737. 



C entrant hus-leaved Pentstemon. Fl. July, Nov. Clt. 1832. 

 PI. 3 to 7 feet. 



Cult. The species of Pentsiemon are amongst the most showy 

 border flowers we possess in our gardens. They grow best in 

 light rich soil, and are readily increased by divisions and cut- 

 tings. They are rather tender, being usually killed by severe 

 frosts or damp in winter, if allowed to remain in the open air ; 

 it is therefore safest to keep a few plants of each species in pots, 

 so that they may be readily sheltered by placing them under a 

 frame in winter. 



II. CHELO'NE (from ^tXwrij, chelone, a tortoise; the 

 back of the upper lip of the corolla is compared to a tortoise.) 

 Dill. gen. p. 11. Lin. gen. no. 748. Schreb. gen. no. 1005. 

 Juss. gen. 137. ed. Usteri, p. 153. Gaertn. fruct. 1. p. 256. 

 t. 54. Anonymos, Gron. virg. 71, 72. Act. par. 1706. t. 3. 

 p. 87. Pentstemon species of authors. 



LIN. SYST. Didynamia, Angiospermia. Calyx 5-parted, Iri- 

 bracteate. Corolla ringent, ventricose : upper lip emarginate : lower 

 one trifid, sterile. Stamens didynamous, with a sterile filament, 

 which is shorter than the rest ; anthers woolly. Capsule 2- 

 celled, 2-valved. Seeds surrounded by a membranous margin. 

 Herbaceous plants, with opposite leaves ; flowers imbricately 

 spiked, terminal. Lower lip of corolla internally bearded. Cap- 

 sule oval. 



1 C. GLA'BRA (Lin. spec. 849.) leaves lanceolate-oblong, acu- 

 minated, serrated, nearly sessile, glabrous. 1. H. Native of 

 the United States. Trew, ehrh. t. 83. C. glabra, var. alba, 

 Pursh, fl. amer. sept. 2. p. 427. Corollas white. 



Far. ft, lanceoldta (Nutt. gen. amer. 2. p. 51.) leaves lan- 

 ceolate, conspicuously acuminated, serrated, sessile, downy be- 

 neath ; bracteas scarcely dilated ; segments of calyx oblong. 

 7 . H. Probably a distinct species according to Nuttal. 



Glabrous Chelone. Fl. Aug. Oct. Clt. 1730. PI. 2 to 3 

 feet. 



2 C. OBLI'QUA (Lin. syst. 553.) leaves petiolate, oblique, 

 lanceolate. If.. H. Native of North America, in the Southern 

 States. Ker. bot. reg. 175. A. glabra, ft, Lin. spec. 849. 

 C. glabra, /3, purpurea, Michx. fl. bor. amer. 2. p. 24. 

 C. purpurea, Mill. diet. no. 2. fig. t. 93. Digitalis mariana, 

 Ray, suppl. 397. Plenk. mant. t. 348. f. 4. Corollas purple. 



Oblique Chelone. Fl. Aug. Oct. Clt. 1752. PI. 2 to 4 

 feet. 



3 C. LYONI (Pursh, fl. amer. 



sept. 2. p. 737.) glabrous, FIG. 65. 



branched ; leaves petiolate, cor- 

 date-ovate, serrated ; spikes ter- 

 minal, with the flowers cluster- 

 ed. % . H. Native of North 

 Carolina, near Wilmington; and 

 of Georgia. C. major, Sims, 

 bot. mag. 1864. Flowers pur- 

 ple, (fig. 65.) 



Lyon's Chelone. Fl. July, 

 Sept. Clt. 1812. PI. 3 to 4 

 feet. 



4 C. LATIFOLIA (Muhl, cat. 

 ex Ell. car. 2. p. 127.) gla- 

 brous ; leaves wide-ovate, or 

 oval, serrated, abruptly acumi- 

 nated, tapering at the base, pe- 

 tiolate ; sterile filament bearded 



near the summit. %. H. Native of Carolina. Chelone Pent- 

 stemon, Walt. car. p. 172. Corollas pale purple. 



