146 WILSON EXPEDITION TO CHINA 



This very remarkable new species of which Mr. Wilson secured excellent mate- 

 rial is not closely related to any other member of the genus Citrus and is undoubt- 

 edly native in central and south-west China in the provinces of Hupeh, Szech'uan, 

 Kweichou and probably also in Yunnan. It grows farther north and at higher 

 altitudes than any other known species of Citrus.^ 



It is cultivated on a small scale around Ichang and yields a fruit which looks 

 somewhat like a large coarse lemon, with a thick skin and many large seeds, but 

 has an acid juice of good flavor. It is known to European residents of China as 

 the Ichang lemon and is shipped as far as Hankow, as Mr. Wilson informs me. 

 The type locality of this species is shown in Wilson's collection of photographs, 

 Nos. 025 and 032. 



A variety of the species. Citrus ichangensis latipes Swingle (in Jour. Agric. 

 Research. I. 12 [1913]), occm-s wild in the Kiasi hills in Assam. 



There may be added some notes on Chinese Citrus chiefly from eastern China, 

 not collected by Wilson. 



Citrus Limonia Osbeck, Reise Ostind. China 250 (1765) .^ 



Citrus Medica, /3. Limon Linnaeus, Spec. 782 (1753). 



Limon vulgaris Miller, Gard. Diet. ed. 8 (1768). 



Citrus Limon Burmann, Fl. Ind. 173 (1768). 



Citrus medica Plenck, Icon. 54, t. 579 (non Linnaeus) (1794). — Hayne, Getr. 



Darst. Arzneik. Gew. XL 27, t. (1830). — Guimpel & Schlechtendal, Abbild. 



Beschreib. Pharm. Boruss. Gew. I, t. 70 (1830). 

 Citrus Lima Aitchison, Encycl. Perthensis II. (before 1806); New and Comp. 



Amer. Encycl. From the Encycl. Perthensis with improvements, New York 



II. 578 (1806). 

 Citrus limonum Risso in Ann. Mus. Paris, XX. 201 (1813). — Berg & Schmidt, 



Darst. Beschreib. Off. Gew. III. 31, t. (1861). — Bentley and Trimen, Med. 



PI. I. 54, t. (1880). 

 Citrus limon Lunan, Hort. Jam. I. 451 (1814). 

 Citrus Limonium Risso in Nouv. Duhamel, VII. 77, t. 28 (1816). 

 Citrus Limonum sylvaticum Risso & Poiteau, Hist. Nat. Orang. 148, t. 70 



(1819). 

 Citrus fusiformis Rafinesque, Sijlva Tell. 142 (1838). 

 Citrus granulata Rafinesque, Sylva Tell. 142 (1838). 

 Citrus communis Poiteau, Pomol. Frang. II. t. 274 (1846). 

 Citrus medica, var. Limonum Hooker f., Fl. Brit. Ind. I. 515 (1875).' 



Yunnan: Mengtze, mountains, alt. 1445 m. [March 21], A. Henry, (No. 

 10445; shrub 1 m., cult.?) 



The lemon, though closely related to the citron, differs from it in having the 

 blade of the leaf articulated with the linear margined or narrowly winged petiole 

 and a thin-rinded papillate fruit with a dehiscent style. The leaves of the lemon 



^ Except Citrus trifoliata Linnaeus which is here considered to belong to a 

 distinct genus, Poncirus. 



* The following PreUnnean names belong here: 



Limon vulgaris Ferrari, Hesperides, 189, 193, t. (1646). 

 Limon vulgare, Volkamer, Numb. Hesperid. 154, t. (1708). 



3 Vernacular name: "?Fo t'ao" (Giles, Chin. Diet. ed. 2, Nos. 3589, 10807, 

 Buddha's peach). — Wu Ch'i-chiin, Chi wu ming shih t'u k'ao, Bk. 31, fol. 55, t 

 (1848). 



