476 



Garden and Forest. 



[October i, 1890. 



Pvrus Aria LACINIATA. — The White Beam of west Europe 

 has not endured our recent summers or winters. But this 

 eastern variety lias been perfect, a rapid grower, and 

 its beauty of foliage has attracted much attention. 



VOLGA Oak. — I picked up some acorns under a beautiful 

 Oak on the bluffs of the upper Volga in 1882. Trees from 

 these, twice transplanted, are now twelve to fourteen feet in 

 height, with dark green cut leaves of great beauty. In rapidity 

 of growth during our dry period they have been a thing of 

 wonder. It is said to be a variety of Quercus robur .• but it is 

 peculiar in expression, and the acorns are borne on thin, tough 

 peduncles from three to four inches in length. 



Phei.lodendron Amurensis. — The Phellodendron from 

 China and Japan is as tender here as the common Peach. 

 But this species as obtained from Russia appears to be hardy, 

 handsome and defiant of drought. 



PYRUS Toringo. — A species of the Apple from east Europe 

 with remarkable, thick, rugose leaves that hold their color 

 until very late in the fall. Severe early freezing does not ap- 

 pear to affect the health or color of the handsome foliage. It 

 is a beautiful, round-topped tree, with pretty flowers and long- 

 stemmed fruit. It is said to be the original form of some of 

 the Transylvanian Apples. 



Salix laurifolia. — As introduced from east Europe, this 

 does not appear to be identical with that of the eastern 

 nurseries. It is a handsome, round-topped tree that few re- 

 cognize as a Willow until the buds and twigs are examined. 

 It appears to delight in heat and aridity of soil and air. 



Acer Ginnala. — This makes a pretty, small tree in our 

 climate, which in the fall puts on all the gorgeous colors of the 

 Japan Maples, which will not live with us. 



Rhus Cotinus. — As introduced from the eastern nurseries 

 the Venetian Sumac will not endure our winters. But the 

 variety from extreme east Europe is perfect. 



Iowa Agricultural College. J . L. Blldd. 



New or Little Known Plants. 

 Rosa Watsoniana. 



THIS curious Rose, of which a figure appears on page 

 477 of this issue, has been grown in the Arnold Ar- 

 boretum during the last dozen years. It came to the Arbo- 

 retum from the garden of Mr. Edward S. Rand, in Dedham, 

 Massachusetts, who had obtained it, if I remember rightly, 

 from a garden in Albany, New York. It was supposed to 

 have been brought from Japan and to be a cultivated form 

 of a variety of Rosa multiflora. Its Japanese or Chinese 

 origin is probable, but Monsieur Crepin, whose knowledge 

 of roses is unrivaled and to whom specimens from the 

 Arboretum havebeen submitted, points out certain characters 

 which separate it from that species and from another east 

 Asia species of the same section (Synstylce), R. anemonce- 

 flora, to which, however, it is closely related. The fact 

 that the plants although perfectly hardy and flowering 

 profusely every year produce no seed, would seem to 

 suggest some long cultivated abnormal form from a 

 Japanese garden, a view which is further strengthened by 

 the fact that wild specimens of this plant have not been 

 collected. 



Rosa Watsoniana* is a graceful plant with slender semi- 

 prostrate stems armed with slender recurved spines. The 

 leaves are three or sometimes five-foliolate with pubescent 

 glandular petioles armed with minute recurved spines, and 

 with very narrow, adnate, entire, hairy stipules. The leaf- 

 lets are narrowly lanceolate or linear, contracted at the 

 two ends and at the apex into a long slender point ; they 

 are pubescent on the lower surface along the midrib, en- 

 tire, with sinuate wavy margins, and are two or two and a 

 half inches long, the broadest less than a quarter of an 

 inch wide. The inflorescence is many-flowered, pyra- 

 midal, four or five inches long, three or four inches broad, 

 the primary bracts awl-shaped, hairy, deciduous with the 

 opening of the flowers. The slender pedicels are jointed 

 and provided with minute membranaceous, caducous 

 bracts. The flower-buds are ovoid and slightly hairy. 

 The sepals are narrowly lanceolate, entire, subulate-pointed, 

 and covered thickly on the inner surface with dense pubes- 



cence. The petals, which are obovate, pointed at the 

 apex, entire, pale rose-colored, form a corolla less than half 

 an inch across when the flower is fully opened. The 

 column of united styles is slender, elongated, and glabrous. 

 The flowers open about the middle of June. 



Rosa Watsoniana possesses considerable interest as a 

 curiosity among Roses, but little beauty or value as a gar- 

 den plant from the ordinary horticultural point of view ; 

 and it will probably never be very much grown, either for 

 its remarkable foliage or its minute flowers. It has proved, 

 however, an admirable stock for several of the Hybrid 

 Perpetual Roses, and has already been propagated to a 

 considerable extent for this purpose in the neighborhood of 

 Boston. 



Our illustration is from a specimen grown in the Arbo- 

 retum, c. s. s. 



♦Crepin, Bull. Bot. Soc. Belg., xxvii, part 2, 98 ; Jour. Royal Hort. Soc, London, 

 xi, part 3, 2. Revue d' Horticulture Beige et £trangere, xiv, 183, f . 16. 



New Orchids. 



Epidendrum vitellinum flore pleno. — A very interesting 

 case of doubling has occurred in the well known Epidendrum 

 vitellinum. A plant in the collection of Mr. Raphael, of Castle 

 Hill, Englefield Green, recently produced five racemes, every 

 flower of which was double and quite regular. The lip was 

 replaced by an ordinary petal, and the column was broken up 

 into six small petal-like segments, which occupied the centre 

 of the flower, thus producing a perfectly regular double flower 

 of twelve segments. Whether the peculiarity will prove per- 

 manent remains uncertain. — Gardeners' Chronicle, July 26th, 

 p. 103; August 2d, p. 123. 



Masdevallia Costaricensis, Rolfe. — A pretty little Mas- 

 devallia, introduced from Costa Rica by Messrs. F. Sander & Co., 

 of St. Albans. It is allied to M. Reichenbachiana and M. mar- 

 ginella, especially to the latter, as the flowers are much of the 

 same color, being white with yellow tails, and the nerves of 

 the lateral sepals of the same color. The peduncle bears two 

 or three flowers in succession. — Gardeners' Chronicle, August 

 16th, p. 183. 



Cypripedium x Youngianum, Rolfe.— This handsome hy- 

 brid, mentioned on page 428, is fully described in Gardeners' 

 Chronicle for August 16th, p. 183. 



Masdevallia Lowii, Rolfe. — This distinct and pretty spe- 

 cies of the Saccolabiata section, mentioned at page 133, was 

 awarded a first-class Certificate by the Royal Horticultural 

 Society on August 12th. — Gardeners' Chronicle, August 16th, 



P- 197. 



Masdevallia X Amesiana. — A hybrid raised between Mas- 

 devallia \ r eitchii and M. tovarensis, and exhibited by Messrs. F. 

 Sander & Co., of St. Albans, at a meeting of the Royal Horti- 

 cultural Society on August 12th. The flowers are described 

 as apricot-colored. — Gardeners' Chronicle, August 16th, p. 197. 



PhaLjENOPSIS Micholitezii. — A new Phalsenopsis, somewhat 

 allied to P. tetraspis, which was exhibited by Messrs. F. San- 

 der & Co. at a meeting of the Royal Horticultural Society on 

 August 12th, when a Botanical Certificate was awarded it. The 

 flowers are greenish white, the lip white with coarse hairs and 

 a yellow crest, and the leaves ovate, shining green and about 

 seven inches in length. — Gardeners' Chronicle, August 1 6th , 

 p. 197. 



Cypripedium x H. Ballantine. — A hybrid between Cypri- 

 pedium purpuratum and C. Fairieanum, exhibited by Messrs. 

 James Veitch & Sons, of Chelsea, at a meeting of the Royal 

 Horticultural Society on August 12th, and to which a first-class 

 Certificate was awarded. It is of dwarf habit, with much of 

 the reticulations of C. purpuratum on the dorsal sepal, the 

 petals greenish brown, with lines of crimson and the lip of 

 similar coloring. — Gardeners' Chronicle, August 16th, p. 197. 



Coryanthes Bungerothii, Rolfe. — A very fine species of 

 Coryanthes, rivaling C. Fieldingii, whose flower Dr. Lindley 

 affirmed to be the largest yet known among Orchids. It was 

 sent from Venezuela in 1888 by M. Bungeroth to Messrs. Lin- 

 den, L'Horticulture Internationale, Brussels, in which estab- 

 lishment it flowered in May of the present year. It is one of 

 the most remarkable Orchids in existence, both in the structure 

 of the flower and in the economy of fertilization. It is de- 

 scribed and finely figured in Lindenia, vol. vi., t. 244 ; also 

 described in Gardeners' Chronicle, August 23d, p. 210. 



Dendrobium Galliceanum, Linden. — A very beautiful 

 Orchid with the habit of D. thyrsiflorum, to which it is obvi- 

 ously allied. The sepals and petals are white, and the lip 

 canary yellow, with fimbriate margin. It was imported with 

 D. thyrsiflorum by Messrs. Linden, L'Horticulture Interna- 

 tionale, Brussels. — Lindenia, vol. vi., t. 241. R. A. Rolfe. 



