1264 



PELARGONIUM 



PELL^EA 



to gardeners as P. odoratum. It is a neat and worthy 

 plant, and showy when in flower. It has a lemon or 

 palm scent. The variety known as Lady Mary is of this 

 group. 



B. Stipules very minute and adnate. 



19. exstipulatum, Ait. Resembles P. crispum in 

 habit and foliage : Ivs. round-ovate, small, velvety, 

 about 3-lobed, the lobes cut-toothed or lobed: peduncles 

 slender, with very small bracts: fls. small, white, with 

 short spatulate petals. Lvs. about % in. across, with 

 odor of pennyroyal. Appears not to be in the trade, at 

 least not in a pure form. 



AAAA. Plant with a short and thick more or less 

 fleshy stem or caudex, from which arise slender 

 branches, the Ivs. long-stalked and reniform or cor- 

 date and obscurely lobed: stamens 6 or 7. (Cor- 

 tusina.) 



20. echinatnim, Curt. The fleshy caudex armed with 

 persistent spine-like stipules : Ivs. white-tomentose, 

 cordate-ovate and obtuse, about 3-5-shallow-lobed : 



calyx downy, the tube sev- 

 eral times longer than the 

 calyx-lobes : fls. white, with 

 a spot near the center (vary- 

 ing to all purple), the petals 

 notched. B. M. 309. - Now 

 and then advertised. The 

 5. are said to change color 

 during the day. 



1710. Pelargonium 



odoratissimtrm. Natural size. 



21. odoratissimum, Ait. NUTMEG GERANIUM. Fig. 

 1710. Stem or caudex very short, throwing up many 

 slender and weak soft-pubescent branches: Ivs. very 

 long-stalked, soft, round-cordate and very obtuse, ob- 

 scurely 3- or more-lobed, the margins dentate-crenate : 

 peduncles long and borne opposite the Ivs., 5-10-fld. : fls. 

 small, white, the petals about twice longer than the 

 calyx-lobes. A common plant, cult, for its pleasant- 

 scented foliage. The plant known to gardeners as P. 

 fragrans is either this species or a close derivative 

 from it. 



AAAAA. Plant with short stem and tuberous roots, the 

 Ivs. pinnate or pinnately parted, the fls. in many- 

 fid, umbels. (Polyactium.) 



22. triste, Ait. Stem or caudex very short, succulent: 

 Ivs. large, 2-3-pinnately compound pubescent, the ulti- 

 mate teeth gland-tipped: calyx-tube long and stalk-like, 

 much exceeding the pedicel, the lobes half as long as 

 the petals: fls. brown-yellow with dark spots. B.M. 

 1641. A well-marked species, occasionally offered in 

 the trade. 



23. quinquevulnentra, Willd. Somewhat shrubby at 

 base, sparingly branched, hirsute : Ivs. 2-pinnatifld 

 with linear toothed segments, the stipules broadly cor- 

 date and mucronate: fls. purple, scentless, the petals 

 obovate, velvety and pale-edged ; calyx -tube as long as 

 the pedicels, somewhat hairy, the lobes obtuse. Once 

 offered by Saul. 



24. fulgidum, Willd. Stem shrubby, densely pubes- 

 cent: Ivs. pinnately 3-parted, silky on both sides, the 

 central segments 3-lobed, all deeply toothed : peduncles 

 usually branched, many-fld. : fls. small, bright scarlet, 

 the petals obtuse; calyx-tube conspicuously swollen at 

 the base and again just underneath the flower, thrice as 

 long as the pedicel, the lobes linear-obtuse. Not now 

 seen in its pure form, but it is probably a remote parent 

 in various small-flowered scarlet Geraniums. 



L. H. B. 



PELECtPHORA (Greek, hatchet-bearing; from an 

 alleged resemblance in the tubercles). Cactdcece. 

 HATCHET CACTUS. Stems globular, short-cylindric or 

 clavate, small, often cespitose: tubercles strongly com- 

 pressed from the sides ; areolae very long and narrow, 

 bordered on each side by a row of about 20 very short, 

 appressed comb-like spines: fr. naked. A genus of 2 

 species closely allied to Mammillaria. 



asellifdrmis, Ehrb. (from a fancied resemblance to 

 Asellus, the wood-louse) . Fig. 303, Vol. I. Juice watery : 

 tubercles ashy green, more or less deeply grooved to 

 the woolly axil; spines not projecting beyond the mar- 

 gin of areola: fls. purple with paler sepals: fr. near the 

 center, red. Nuevo Leon and San Luis Potosi, Mex. 

 I.H. 5:186. -Var. cbncolor has pure purple fls. B.M. 6061. 



pectinata, Schum. Juice milky : tubercles bright 

 green with naked axils ; spines projecting a little 

 beyond the margin of tubercle: fls. yellow, lateral. 

 Oaxaca, Mex. KATHARINE BRANDEGEE. 



PELICAN FLOWEK. Aristolochia grandiflora. 



PELL2EA (Greek, pellos, dusky; from the usually 

 dark-colored leaf-stalks). Polypodiacece. A genus of 

 small, rock-loving ferns, with the sori at the ends of 

 free veins forming a mostly continuous marginal band 

 around the segments and covered by the more or less 

 changed margin of the segments. Most species thrive 

 best on limestone rocks. 



A. Lvs. simply pinnate. 



B . Lifts . 4-5 pa irs . 



Pringlei, Dav. Lvs. with 4-5 pairs of large triangular 

 hastate stalked Ifts. 1 in. or more either way: sorus 

 forming a wide marginal band. Mexico. 



BB. Lfts. 5-8 pairs. 



Bridges!!, Hook. (Platyldma Bridgesii, J. Sm.). Lfts. 

 subsessile, orbicular or subcordate, 4-5 lines long: sori 

 confluent in a broad intramarginal band. Calif. 



BBB. Lfts. 20-40. 



rotundifdlia, Hook. Lfts. short-stalked, oblong or 

 roundish, entire, obtuse. New Zealand. 



falcata, Fe"e (Platyldma falcatum, J. Sm.). Lfts. 

 nearly sessile, lanceolate or lanceolate-oblong, mucronate 

 and often slightly falcate, sori in broad lines. India to 

 Australia and New Zealand. 



AA. Lvs. bipinnate. 

 B. Pinnce formed of 3 sessile Ifts. 

 ternifolia, Fe"e. Lvs. 6-12 in. long on strong dark 

 chestnut stalks, narrow, with 6-12 opposite pairs of pin- 

 nae; Ifts. closely rolled together, linear. Trop. Amer. 



BB. Pinnce (at least the lower ones) pinnate. 

 Wrightiana, Hook. Lvs. 3-6 in. long, 1-3 in. wide, 

 deltoid; pinnae with several linear-oblong pinnules on 

 each side 34 in. long, with inrolled edges and a sharp 

 mucronate point. Texas to California. 



atropurpurea, Link. Lvs. 4-12 in. long, 2-6 in. wide, 

 lanceolate to ovate -lanceolate, with several pinnules 

 which are sessile, auricled or heart-shaped at the base, 

 the broad line of sporangia nearly hiding the narrow 

 marginal indusium. Eastern America to the Rocky 

 mountains. 



AAA. Lvs. at least tripinnatifid. 



c. Shape of Ivs. triangular-deltoid, with narrow ulti- 

 mate divisions. 



d6nsa, Hook. CLIFF BRAKE. Lvs. 2-3 in. long, 1-1% 

 in. wide, on slender brown stalks; segments linear with 

 enrolled edges sharp-pointed; indusium permanently 

 covering the sori. Pacific North America. 



