PELL^A 



PELORIA 



2535 



AA. Lvs. bipinnaie. 

 B. Pinnae formed of 3 sessile Ifts. 

 ternifdlia, Lank. Lvs. 6-12 in. long on strong dark 

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

 pinnae; Ifts. closely rolled together, linear. Trop. 

 Amer. 



BB. Pinnae (at least the lower ones) of more than 3 Ifts. 



mucronata, Eaton (P. Wrightiana, Hook.). Lvs. 3-6 

 in. long, 1-3 in. wide, deltoid; pinnae with several 

 linear-oblong pinnules on each side Hin. long, with 

 inrolled edges and a sharp mucronate point. Texas to 

 Calif. 



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. E. Amer., to the Rocky Mts. 



2853. Pelltea 

 viridis. A good 

 greenhouse fern, 

 likely to be known 

 to gardeners as 

 P. hastata. 



AAA. Lvs. at least tripinnatifid. 

 B. The Ivs. triangular-deltoid, with narrow ultimate 



divisions. 



densa, Hook. CLIFF BRAKE. Lvs. 2-3 in. long, 

 1-1; f 2 in- wide, on slender brown stalks; segms. linear 

 with inrolled edges sharp-pointed: indusium perma- 

 nently covering the sori. Pacific N. Amer., and east- 

 ward to Wyo. 



BB. The Ivs. elongate, ovate, or lanceolate. 

 andromedaefolia. Fee. Lvs. 6-12 in. long, 3-6 in. 

 wide; ultimate divisions l^y-2 lines long, linear-oblong, 

 with inrolled edges. Calif. Sometimes known as the 

 coffee fern. 



viridis, Prantl (P. hastata, Link). Fig. 2853. Lvs. 

 6-24 in. long, 6-12 in. wide; ultimate divisions ovate 

 or lanceolate, 1-2 in. long, nearly sessile: sori hi a nar- 

 row marginal line. E. and S. Afr. Small Ivs. are some- 

 times only bipinnate. Very commonly used in small 

 ferneries. 



P. SteUeri, Beddome (P. gracilis, Hook.), a rare membranous 

 species of the eastern states, is more closely allied to the genus 

 Cryptogramma, to which Prantl has referred it, 



L. M. UNDERWOOD. 

 161 



2854. Toad-flax Linaria. 

 Showing normal flowers 

 above and an abnormal or 

 peloric flower beneath. 



PELLIONIA (J. Alphonse Pellion, officer in Frey- 

 cinet's voyage around the world). Urticaces. Two 

 choice tender creeping foliage plants of this genus are 

 cultivated, suitable for baskets and for the borders of 

 greenhouses under the benches. 



Herbs, often creepers, 

 rarely subshrubs from Trpp. 

 and E. Asia and the Pacific 

 Isls. : Ivs. alternate, 2-ranked, 

 unequal at the base, entire 

 or serrate: fls. monoecious or 

 dioecious, mostly in dense 

 cymes; perianth - segms. 5, 

 rarely 4, in fr. sometimes 

 unchanged but usually in- 

 creased and investing the fr. 

 Species 1^20. The cult, 

 species require warm tem- 

 perature and moist atmos- 

 phere. Prop, by cuttings and 

 division. One of the species 

 was once advertised as a 

 Peperomia. 



Daveauana, N. E. Br. Pros- 

 trate, 1-2 ft. long, the sts. 

 succulent and creeping below, 

 the tips pubescent: Ivs. 1-2 % 

 in. long, sessile, obliquely 

 oblong or orbicular, crenate 

 and obtuse at tip, dark bronzy 

 olive- green more or less 

 flushed violet or red, with a 

 fern-like figure of light green down the middle of the 

 If., the figure being narrowly oblong and crenate. This 

 figure is sometimes absent from some of the Ivs. The 

 Ivs. are more acuminate than in the next. Burma to 

 Cochin-China. R.H. 1880:290 (as Begonia Daveauana, 

 a charming picture). I.H. 29:472. 



pulchra, N. E. Br. Practically glabrous, with creep- 

 ing fleshy sts. tinged purplish: Ivs. obliquely oblong and 

 very obtuse, dull blackish along the midrib and veins, 

 the inter-spaces being light green, the under surface 

 pale purplish. Cochin-China. I.H. 30:479. A.G. 15:4. 



WILHELM MILLER. 

 L. H. B.t 



PELORIA (Greek for monster). A term applied to 

 the phenomenon when usually irregular flowers, such 

 as those with some of 

 the petals or sepals 

 spurred or saccate, de- 

 velop all the parts of 

 each set alike, thus 

 becoming radially sym- 

 metrical. The case was 

 observed by Linnaeus 

 in Linaria vulgaris, Fig. 

 2854, and the term 

 peloria was given by 

 him. Flowers of ten be- 

 come peloric on account 

 of changes in their 

 relations to light, but 

 other causes certainly 

 contribute. A reverse 

 change, by which radial 

 flowers become zygo- 

 morphic, occurs in 

 many Composite when 

 the corollas of disk- 

 florets become strap- 

 shaped, as in the culti- 

 vated asters and chry- 

 santhemums. Some- 

 times, on the contrary, 2855. Normal columbine flower, 

 all spurs fail to develop. with spurs present. 



