PINACEAE. — PINUS 3 
che, Valley of Ya-lung, type locality, alt. 3000-3600 m., October 1908 
(Nos. 1465, 1466, 1467, 1478); alt. 4000 m. (No. 1479); forests of 
Ta-pao-shan, northeast of Tachien-lu, alt. 3500 m., July 1908 (No. 
1491); descent of Hsao-chin-ho, Mou-kong-ting, alt. 2300-2600 m., 
June 1908 (No. 1500); north of Tachien-lu, alt. 3300 m., July 1908 
(No. 2502); Moshi mien, southeast of Tachien-lu, alt. 1600-2000 m., 
October 1908 (No. 2504); Sung-pan, alt. 2600-3000 m., 1910 (No. 
4055); no locality, 1910 (No. 4073). 
Pinus Wilsonii Shaw, n. sp. 
Arbor excelsa foliis geminis rigidis 7-10 cm. longis, canalibus resini- 
feris numerosis in textura virente externis, strobilis solitariis v. 2-3 
verticillatis, junioribus subterminalibus mucronatis, adultis 4-6 cm. 
longis ovato-conicis obtusis subconformatis pedunculatis patulis v. 
reflexis persistentibus in aetate matura dehiscentibus, squamarum 
apophysi subelevato-pyramidata nitido-fusca, umbone prominente 
saepe mucronato. 
Western Szech’uan: Wa-ssu country, alt. 1600-2300 m., May 
and July 1908 (No. 1475); Wa-shan, alt. 2000 m., September 1908 
(No. 1477); Mao-chou, alt. 1900 m., May 1908, type specimen (No. 
1493); Niu-tow-shan, west of Kuan Hsien, alt. 2300 m., June 1908 
(No. 2500); Min Valley, 1910 (No. 4056). 
In many particulars this Pine resembles the previous species and ultimately 
may be united with it; the principal difference lies in its subsymmetrical cone and 
its possibly invariable number of fascicle leaves. The species is established on the 
representation of Mr. Wilson, who considers it entirely distinct from all the other 
Pines that he has seen in China. 
