ULMACEAE. — ULMUS 263 



viridia, subtus paulo pallidiora, glabra v. in axillis nervorum lateralium lateris lon- 

 gioris circiter 10-15 paulo barbulata, margine subsimpliciter distincte dentata, 

 minora 3-4.5 cm. longa et 1.5-2.2 cm. lata, majora 5-7 cm. longa, ad 3 cm. lata; 

 petioli satis longi, graciles, flavescentes, superne tantum sparse villosuli, 6-10 mm. 

 longi. Flores fructusque ignoti. 



Except the very unequal base of the leaves this interesting form is very much like 

 U. pumila Linnaeus. 



16. Ulmus glaucescens Franchet in Nouv. Arch. Mus. Paris, s4r. 2, VII. 76, t. 

 8, fig. A (PI. David. I. 266) (1884). — Schneider, III. Ilandb. Laubholzk. II. 904, 

 fig. 565 h, 566 g (1912). 



CHINA. Shansi : "Toumet,Sartchy," A. David (No. 2634, type, ex Franchet). 



According to the description this species must be very closely related to U. pu- 

 mila Linnaeus. Franchet says that the leaves are only up to 4 cm. long and 2.5 cm. 

 broad, but on the plate the leaves are represented up to 5 cm. long and very similar 

 in shape to those of specimens of U. pumila before me. But I have never seen such 

 large samaras as U. glaucescens is said to have (" samara 2-2 J^ cm. longa ")• 

 Hemsley does not mention this species in the Index Florae Sinensis and I have not 

 seen any specimen of Ulmus from eastern Shansi. 



Series c. Lanceaefoliae Schneider in Oester. Bot. Zeitschr. LXVI. (1916). 

 Ulmus, subgen. Microptelea Planchon in Ann. Sci. Nat. s6r. 3, X. 281 (1848), 

 quoad U. lancifoliam; in De Candolle, Prodr. XVII. 162 (1873), quoad U. 

 Hookerianam. — Engler in Engler & Prantl, Nat. Pflanzenfam. III. Abt. 

 1, 62 (1888), quoad U. Hookerianam. 



I suppose that this series may be better regarded as a subsection or even as a 

 section, and it needs further investigation to fix the real relationship of the following 

 species, which hitherto has been referred to sect. Microptelea. 



15. Ulmus lanceaefolia Roxburgh apud Walhch, Icon. PL As. Rar. II. 86, t. 

 200 (1831). 



Ulmus lancifolia Roxburgh, Fl. Ind. ed. 2, II. 66 (1832). — Planchon in Ann. 

 Sci. Nat. ser. 3, X. 281 (1848); in De Candolle, Prodr. XVII. 162 (1873). — 

 Kurz, Forest Fl. Brit. Burma, II. 473 (1877). — Hooker f., Fl. Bnt. Ind. V. 

 480 (1888). — Hemsley in Jour. Linn. Soc. XXVI. 447 (1894). — Gamble, 

 Man. Ind. Timber, ed. 2, 628 (1902). — Prain, Bengal PI. 958 (1903).— 

 Schneider, III. Handb. Laubholzk. 222, inadnot. (1904); II. 904, fig. 565 f 

 (1912). — Brandis, Ind. Trees. 594 (1906). 



Ulmus Hookeriana Planchon in De Candolle, Prodr. XVII. 162 (1873). -Eng- 

 ler in Engler & Prantl, Nat. Pflanzenfam. III. Abt. 1, 62 (1888). 



CHINA. Yunnan: Linan district, March 1, A. Henry (No. 10571; tree 3 m. 

 tall; with ripe fruits and leaves); Szemao, Yulo forest, April 9, A. Henry (No. 

 12864; tree 7 m. tall; with ripe fruits and leaves). 



INDIA. Assam: " Dimapur, 400 ft.," March 23, 1896, Dr. King's Collector 

 (No. 100; with fruits and leaves). Burma: without locahty (No. 4678, Herb. 

 Griffith; with fruits and leaves). Eastern Bengal : " Khasia, reg. trop., alt. 0.- 

 3000 ped.," J. D. Hooker (sterile): Chittagong, hilly parts, W. Roxburgh (type 

 ex Roxburgh). Sikkim : " reg. trop., alt. 4-5000 ped.," J . D. Hooker (with fruits 

 and leaves; type of U. Hookeriana). Sikkim: "Environs of Darjiling, 6000 

 to 8000 feet," July 1855, Schlagintweit (No. 12319; young plant). 



The leaves of this interesting species are subdeciduous, and according to Brandis 

 the tree is generally leafless during part of the hot season when it flowers. The 



