234 PROCEEDINGS OF THE AMERICAN ACADEMY. 



feet); Tsuba-kura-dake, prov. Shinano, alt. 900 m., cultivated, 

 September 15, 1914, E. H. Wilson (No. 7497; tree 10 m. tall, fruit 

 russet, flesh white, sweet). Besides these specimens I have seen from 

 the Herbarium of the Cornell University Experiment Station numer- 

 ous specimens from plants cultivated in this country under the names : 

 Oriental Pear, Japanese Pear, Chinese Sand Pear, Madame von 

 Siebold, Daymio, Mikado, Rikiya and Gold Rust or Golden Russet. 

 The Japanese pear cultivated under the name "Madame von 

 Siebold" may be considered as representing the type of this variety. 

 It has large subglobose, somewhat depressed fruit with deciduous 

 calyx and is well described and figured by Carriere (in Rev. Hort. 

 1879, 170, t.); by Ottolander in Flor. & Pomol 1877, 100, fig. 2 and 

 in Nederl. Flora en Pomona 69, t. 21 ; by S. Morris in Am. Gard. n. ser. 

 XIII. 87 (1892); also the figure in American Agriculturist, XXX. 

 462 (1871) and in Gard. Chron, ser. 2, III. 106, fig. 17, 18 (1875) 

 belong probably here. Pyrus Sieboldi Carriere (in Rev. Hort., 1880, 

 110, t.) has large pear-shaped fruit with deciduous calyx, but according 

 to Ottolander (in Flor. & Pomol., 1877, 100, fig. 3) it has a persistent 

 calyx. "Ottolander" has an oblong fruit with deciduous calyx 

 (Flor. & Pomol., 1877, 100, fig. 4; also in Gard. Chron, ser. 2, IV. 

 456, fig. 95. 1875, and ser. 3, XXVIII. 300, fig. 89. 1900). "Gold 

 Rust" has, according to a photograph in the Cornell Garden Her- 

 barium, a subglobose fruit without calyx. "Daymio" has a globose- 

 ovoid yellowish fruit with persistent calyx (Nederl, Flora en Pomona, 

 69, t. 21, fruit at the left). "Mikado" has a broadly pear-shaped 

 yellow fruit without calyx (Rev. Hort., 1878, 310, t). The last two 

 forms are possibly hybrids. Some of the above named forms have 

 hybridized with the Common Pear; the best known of these hybrids 

 is the "Kieffer Pear" which has finely or nearly crenately serrulate 

 leaves and a pear-shaped fruit with persistent calyx. 



6. Pyrus serrulata, Rehder, sp. n. 



Arbor 7-8-metralis; ramuli hornotini leviter lanati, mox glabri, 

 annotini purpureo-fusci, sparse lenticellati; gemmae ovatae, fuscae, 

 perulis ovatis acutis exterioribus margine ciliato excepto glabris. 

 Folia chartacea, ovata vel ovato-oblonga, subito vel sensim acumi- 

 nata, basi rotundata vel late cuneata, margine serrulata dentibus 

 adpressis et plerumque leviter incurvis acutis vel breviter acuminatis, 

 5.5-11 cm. longa et 3.5-6.5 lata, initio subtus tomento araneoso- 

 lanato fugace leviter obtecta, cito glabrata, supra ab initio glabra vel 

 fere glabra, nervis utrinsecus 7-13 arcuatis, utrinque in sicco leviter 

 reticulata; petioli graciles, 3.5-7.5 longi, initio leviter lanati, mox 



