264 WILSON EXPEDITION TO CHINA 



pubescence of the branchlets, especially of the strong shoots, is usually more or less 

 fulvous and often somewhat scabrous. The lobes of the perigone are of the same 

 shape as in the other species of this section and not deeply cleft as in sect. Microptelea. 

 In Hooker's specimen from Sikkim, the type of Planchon's U. Hookeriana, the fruits 

 (apparently not yet fully ripe) are smaller, and the lower pilose part of the pedicels 

 is mostly shorter than in the other specimens and only a little longer than the upper 

 part from the joint to the perigone. It needs further investigation before it is pos- 

 sible to know whether this fact is of any taxonomic value in distinguishing a sep- 

 arate form. 



Sect. II. MICROPTELEA Bentham & Hooker, Gen. PI. 352 (1883). — Henry 

 in Elwes & Henry, Trees Great Brit. & Irel. VII. 1848 (1913). — Daveau in Bull. 

 Soc. Dendr. France, 1914, 21 (pro parte). 



Microptelea Spach in Ann. Sci. Nat. s^r. 2, XV. 358 (1841); Hist. Veg. XI. 113 

 (1842). 



Ulmus, subgen. Microptelea Planchon in Ann. Sci. Nat. ser. 3, X. 279 (pro 

 parte) (1848); in De Candolle, Prodr. XVII. 161 (1873), exclud. U. Hooke- 

 riana. — K. Koch, Dendr. II. pt. 1, 422 (1872). — Engler in Engler & Prantl, 

 Nat. Pflanzenfam. III. Abt. 1, 62 (1888), exclud. U. Hookeriana. — Dippel, 

 Handh. Laubholzk. II. 34 (1892). — Koehne, Deutsche Dendr. 134 (1893).— 

 Schneider, HI. Handh. Laubholzk. I. 221 (1904). 



To this section also belongs the North American U. crassifolia Nuttall, which 

 represents the series Crassifoliae Schneider in Oester. Bot. Zeitschr. LXVI. (1916) 

 " fructibus undique pilosis, dense ciUatis." 



16. Ulmus parvifolia Jacquin. See p. 244. 



There may be mentioned another Elm probably representing a new species the 

 taxonomic position of which remains doubtful as long as the fruits are unknown. 



17. XJImus, spec, nova? 



Arbor?; ramuli floriferi plus minusve pubescentes (ut videtur novelli villosuli) 

 flavo-brunnei ; gemmae ovatae, perulis extus pilosis et distincte ciliatis brunneis. 

 Inflorescentiae fasciculatae, circiter 10-florae; flores breviter pedicellati, parte pedi- 

 cellorum superiore glabra quam pars inferior pilosa vix longiore; perigonia 4-lobata, 

 glabra, lobis paulo ultra medium incisis obtusis f usco-ciUatis ; stamina 4, filamentis 

 perigonio plusquam duplo longioribus, antheris nondum visis; ovarium glabrum, 

 sessile. Samarae ignotae. 



INDIA. " Suring, Sarju Valley, alt. 5000 feet," R. Strachey & J. E. Winterhottom 

 (No. 2 in Herb. Gray; leafless flowering branchlets and also the sterile branchlets 

 described beneath). 



The specimen also contains sterile branchlets with apparently not yet fully gro-RTi 

 leaves, and I am not quite sure whether or not they belong to the same plant. They 

 may be described as follows: Ramuli novelli annotinique dense griseo- et fulvo- 

 hirsuti. Folia ovata, ovato-lanceolata v. late ovata, basi plus minusve rotunda, 

 paullo asymmetrica, apice sensim v. subito acuminata, supra pilis scabris obtecta, 

 subtus pallidiora, ad costam nervosque utrinsecus circiter 12 (imo apice excepto) 

 praecipue in axillis et paulo ad faciem hirtella, margine dupliciter serrato-dentata, 

 minora 4-5.5 cm. longa, 1.5-2 cm. lata, maxima ad 7 :3 cm. v. 8: 5 cm. magna, petioh 

 3-7 mm. longi, hirsuti, stipulis late lanceolatis sparse sericeis breviores. 



The branchlets described above apparently are from young plants which in 

 several species develop shoots with such a brownish hirsute pubescence. The same 

 Ehn may be represented by two sterile specimens from Afghanistan collected by 



