1178 



OSMORHIZA 



glabrous or bristly; carpel slightly flattened dorsally or 

 not at all; styles long or short; seed-face from slightly 

 concave to deeply sulcate. Coulter and Rose, Monograph 

 of North American Umbellifera?, 1900. The generic 

 name is also spelled Osmorrhisa. 



A. I'r. with prominent caudate attenuation {2-4 lines 

 long) at base, very bristly. 

 B. Style a line or more long. 



longistylis, DC. Stout, glabrous or slightly pubes- 

 cent. Canada to Va. and west to Dakota. B.B. 2:530. — 

 Roots with a stronger smell and taste of anise than O. 

 brevistylis. Brotherton says it is a much prettier plant 

 than the next, with larger umbels. 



BB. Style half a line or less long. 

 c. Lfts. SS in. long: rays stout, 1-2 in. long. 



brevistylis, DC. Rather stout, villous-pubescent: 

 h-s. 2-3-temate: style and stylopodium half a line long. 

 Canada to N.C. B.B. 2:530. 



CO. Lfts. %-2iH. long: rays slender, 2-4 in. long. 



nikda, Torr. Rather slender, somewhat pubescent or 



AA. Fr. without caudate attenuation at base. 

 oocidentilis, Torr. (Myrrliis Occident Alls, Benth. & 

 Hook.). Rather stout, puberulent or pubescent: Ivs. 

 2-3-ternate; lfts. lH-4 in. long: umbel 5-12-rayed: 

 rays 1-5 in. long: stylopodium and style ii-1 line long. 

 Calif, to Wash., east to Montana. t^^ ]y^ 



OSMUNDA (from Osmitnder, aname of a Saxon god). 

 Osmund ()<■<■<£. A small genus of showy native ferns, 

 with ratlu-r coarse foliage, but highly ornamental from 

 their clustered habit. The sporangia are formed in 

 panicles borne on the veins of reduced Ivs., provided 

 with a rudimentary transverse ring and opening verti- 

 cally. 



A. I/t's. fully bipinnate. 



regilis, Linn. Royal Fern. Growing in clumps 2-5 

 ft. hi^h, some of the leaves bearing panicles at their 

 summits; pinnse 1-2 in. long, rounded at the base and 

 usually blunt. Well adapted for open, moist places. 



i596. Royal Fi 



Eu., N. Amer. and J.ipan. -Commonly called Flowering 

 Fern or King-fern. O. Japonicn, Thunb., is a form with 

 the sporophylls forming distinct leaves and soon with- 

 ering away; various crested forms appear in cultivation. 

 AA. Lvs. hipiniinlifid only. 

 cinnam6mea, Linn. riNN\M..x Fern. Fig. 1.596. 

 Plate XI. Growing in .lusi.rs L'-l ft. high or even 

 more, the sporophylls aii|»;criiif,' i;irlii-st, at first green. 



OSTROWSKIA 



but becoming pale, long and narrow, cinnamon-colored 

 at maturity of the spores, the Ivs. growing about ;i 

 crown from a large, mostly vertical rootatock. N. Amer. 

 — Very handsome for decorative purposes, especially for 

 low grounds. 



Claytoni&na, Linn. Growing in crowns, with the 

 sporangia confined to a few (4-10) of the central pinnai 

 of the leaf, and of a dark brown color. Similar to tlnv 

 last, but lacking the little tuft of wool in the axils of 

 the pinnfB which characterizes the Cinnamon Fern. N. 

 Amer; said also to grow in India. 



L. M. Undeuwood. 



Osmundas are strong - growing ferns of vigorous 

 constitution, and well adapted for general culture in 

 any fertile soil which is not over dry. They are deep- 

 rooted ferns and, therefore, require considerable de|)tb 

 of soil. All the species do well in full sunliglil, 

 but the most satisfactory position for all the species 

 would be a deeply dug, thoroughly enriched border ly- 

 ing north of a wall. 0. regalis reaches perffction only 

 in rich, wet swamps in full sunlight or tliin shade, 

 where it may attain a height of 8 ft. O. Cluylvniunii 

 prefers rich, peaty soil in moist but not wet, open or 

 partially shaded positions. It may attain a height of (J 

 ft. O. cinnamomea is naturally a fern of the swamp, 

 though not in such wet positions as O. regalis. It 

 grows most luxuriantly in partial shade. In a wild statu 

 it occasionally attains a height of G ft. 



F. W. Barclay. 



OSTEOMiLES (Greek, stone apple or stone fruit). 

 Ros&cece. The plant which bears the uncomfortable 

 name of Osteomeles anthyllidifolia is a white-fid., red- 

 fruited bush, ranging from China through the Pacific 

 islands as far south as Pitcairn's island. It has pin- 

 nate foliage, silvery beneath, each leaf 2-4 in. long and 

 composed of about 25 lfts. The specific name of the 

 plant records its resemblance in foliage to Anfhyllis 

 Barba-Jovis, a plant with pea-like fls., known as Ju- 

 piter's Beard, which is considerably used for seaside 

 planting in frostless countries. Botanically Osteomeles 

 is closest to our shad bush (Amelanchior), but inferior 

 in hardiness and in beauty of fis. All the other species 

 of Osteomeles (about 7) are natives of the Andes, and 

 have simple Ivs. The silvery nature of O. anthyllidi- 

 folia varies considerably in the wild, and glabrous speci- 

 mens have been collected. 



Generic characters: trees and shrubs: Ivs. alternate, 

 stalked, leathery, evergreen, entire or serrate : fls. 

 white, few or numerous, in flattish clusters: calyx-tube 

 bell- or top-shaped, adnate to the carpels; lobes 5, per- 

 sistent; petals 5, oblong; stamens 10 or more, inserted 

 on the throat of the calyx; carpels 5, more or less grown 

 together and to the ealyx: drupes 5-stoned. 



anthyllidiSolia, Limll. Evergreen bush, 5-C ft. high, 

 much brun. Iieil: l^irk brownish black: Ivs. spreading 

 and rec\u-ve.l: lfts. more or less in pairs, yellowish 

 green : Hs. about =;, in. across, a dozen or so in a clus- 

 ter. B.M. 7354. \y. jj, 



OSTEOSPfiBMUM moniliferum is a shrubby yellow- 

 fid, composite, growing 2—4 ft. high, which was offered 

 in 1891 by Reasoner Bros.. Oneco, Fla. It has dropjied 

 out of cult. It is fully de.scribed in Flora Capensis 

 3:433, where the entire genus of 38 species is mono- 

 graphed. 



0STR6WSKIA (after N. ab Ostrowsky, Russian pa- 



interesting "har 

 last-two decades 

 grows 4 or 5 ft. 

 bears 3-G bell-sl 



out appearance, 

 ish tints. Gem 

 lavender or man 



roduced during the 

 century. Each stem 

 iinly at the top, and 



M." which shows pink- 

 ■ olor as a very light 

 with deeper veinings. 



