206 WILSON EXPEDITION TO CHINA 
Quercus fragifera Franchet in Jour. de Bot. XIII. 157 (1899). 
Quercus Wilsonii Seemen in Fedde, Rep. Nov. Spec. III. 53 (1906). 
Pasania Wilsonit Schottky in Bot. Jahrb. XLVII. 660 (1912). 
Pasania cleistocarpa Schottky in Bot. Jahrb. XLVII. 660 (1912). — Koidzumi 
in Icon. Pl. Koisikav. I. 113, t. 57 (1912). 
Synaedrys Wilsonii Koidzumi in Tokyo Bot. Mag. XXX. 187 (1916). 
Synaedrys cleistocarpa Koidzumi, l. c. 188 (1916). 
Western Hupeh: Changyang Hsien, woods, alt. 1300-1600 m., 
September 1907 (No. 3636; tree 6-16 m. tall, girth 1-2 m.); same lo- 
cality, June and December 1900 (Veitch Exped. No. 1521, type of Q. 
Wilsonii Seemen). Patung Hsien, woods, alt. 1000-1600 m., June 1907 
(No. 36365; tree 10-13 m. tall, girth 1-1.5 m.); same locality, Novem- 
ber 1901 (Veitch Exped., Seed No. 1204); Changlo Hsien, woods, alt. 
1000-1500 m., July 1907 (No. 3636^; tree 10-13 m. tall); Hsing- 
shan Hsien, woods, alt. 1000-1800 m., June 2 and July 1907 (Nos. 
36364, 3635, 3635°; tree 6-13 m. tall); Fang Hsien, woods, alt. 1500 
m., July 1907 (No. 3636°; tree 13 m. tall, girth 2 m.); without local- 
ity, A. Henry (Nos. 6002, 6524, 6538, 6715). Western Szech'uan: 
Wa-shan, woods, alt. 2000-2600 m., July 1908 (No. 3624; tree 10 m. 
tall, girth 1 m.). 
We can find no valid differences between von Seemen's two species and it would 
appear that he must have overlooked his Q. cleistocarpa when describing Q. Wilsontt. 
The summit of the acorn is flat or even depressed in imperfectly developed 
fruits, but usually it isslightly raised. Sometimes the upper part of the cup does not 
properly develop, and in that case a greater or lesser part of the acorn is exposed and 
the appearance of the fruit is changed. The species is obviously very closely re- 
Pasania Oersted in Kjoebenh. Vidensk. Meddel. XVIII. 81 (Bidr. Egesl. Syst. 73) 
(excl. sect. Chlamydobalanus) (1866). — Prantl in Engler & Prantl, Nat. 
Pflanzenfam. III. abt. 1, 55 (excl. sect. Chlamydobalanus) (1889). — 
Schottky in Bot. Jahrb. XLVII. 620 (1912). 
There can be little doubt that the four genera enumerated above are so closely 
related that they cannot be considered distinct, and as Lithocarpus is the oldest of 
these generic names, it becomes, as already pointed out by Nakai, the name of the 
genus, the type of which is L. javensis Blume. The reason why Koidzumi rejected 
Lithocarpus and uses the name Synaedrys is apparently the supposed existence of an 
earlier homonym which he quotes as “ genus Styracaceorum in Cat. Buitenzorg. 
1823." We are, however, unable to find in Blume's Catalogus van . . . Gewassen te 
vinden in ’s Lands plantentuin te Buitenzorg of 1823 any mention of a genus Litho- 
carpus. The first place where we find this name mentioned is in Endlicher's Genera 
plantarum, 743 (1836-40) under Styraz a. Eustyraz as “ Lithocarpus Blume Hort. 
Buitenz. non Fl. Jav. St. Benzoin Dryand.," and Miquel refers to it in 1855 in his 
Flora Indiae Batavae, Y. pt. 1, 865, adding after Lithocarpus Bl. Bijdr. p. 527 “ non 
homonymum ejusdem genus Styracem Benzoin spectans.” Apparently Lithocarpus 
Blume Hort. Buitenzorg is an unpublished name and being, moreover, & synonym 
of Styraz, it cannot, even if it should have been published earlier, invalidate Blume 5 
Lithocarpus of 1825. 
