144 JOURNAL OF THE ARNOLD ARBORETUM [vol. vi 



TWO NEW TREES FROM CHEKIANG 



Woon Young Chun. 



Torreya Jackii, sp. nov. 



Arbor parva ad 8 vel 12 in. alta, trunco circiter 20 cm. diam., vel saepius 

 frutex altus ramosissimus, fructificans aetate juvenili; rami ascendentes 

 ramulis patentibus vel ieviter pendulis, comam irregularem vel rolundatam 

 formantes; cortex trunci cinereus, ieviter fibrosus, in lamellas tenues ir- 

 regularcs decorticans et corticem interiorem brunneseentem detegens; 

 ramuli hornotini virides, demum viridi-brunnei, anno secnndo et tertio 

 rubro-brunnei, lucidi, vetustiores obscure grisei. Folia biseriatim ex- 

 pansa, Ieviter porrecta, falcata, linearia, 3.5-1), pleraque 6-8 cm. longa et 

 3-4 mm. lata, sensim in apicem spinosum attenuata, basi Ieviter torta, 

 margine in sicco non revoluta, supra intense et lucide viridia, costa media 

 inconspicua Ieviter impressa, subtus luteo-viridia et striis stomatiferis 

 2 all)escentibus notata, fracta odore aromatico. Flores non visi. Fructus 

 (immaturus) circiter 2 cm. longus, obovoideus, virescens, pruinosus, sub- 

 sessilis, basi squamis pluribus castaneis lucidis suffultus; endospermum, 

 ut videtur, profunde ruminatum. 



Proxima 7. calif or nicae Torrey (Tumion calif or nicum [Torrey] Greene) 

 quae foliis brevioribus non falcatis, fructo ovoideo vel oblong-ovoideo 

 diflVrt. 



Chekiang: Ga Fung Kwan, Chen Chon, 20 li south of Hsien-Chii 



Hsien alt. t(H) !)()() m., Ren-Chang Chitig, June 3, 1924, Southeastern 

 University expedition to Chekiang, no. 1779 (type); tree in fruit, locally 

 abundant but not reported elsewhere. Specimens in the Herbarium of 

 the National Southeastern University, Nanking, China, and in the Her- 

 barium of the Arnold Arboretum. 



The leaves of this species are very aromatic when bruised or burned, 

 giving off a fragrance like that of sandalwood oil. The wood is fairly 

 hard and very fragrant. 



This species is named in honor of Professor John G. Jack of the Arnold 

 Arboretum, teacher of the author, and of other Chinese students of taxo- 

 nomic botany, in order to record our sense of gratitude to him for the part 

 he played in initiating and encouraging the systematic study of Chinese 

 plants by the Chinese themselves. 



Halesia Macgregorei, sp. nov. 



Arbor mediocris ad 24 m. alta, maturitate glaberrima perulis ciliatis et 

 dorso sparse stellato-pubescentibus exceptis; trunci cortex lac vis, cinereus; 

 ramuli graciles, purpureo-fusci, glabri, annotini obscure cinerei; gemmae 

 juveniles anguste conicae, perulis lucidis brunneis, interioribus plus minusve 

 stellato-pubescentibus. Folia decidua, tenuiter membranacea, breviter 

 petiolata, magnitudine et forma variabilia, pleraque elliptico-oblonga, 

 interdum anguste elliptica vel ova-toelliptica, 3.5-8.5 cm. longa et 1.8-3 

 cm. lata, acuminata vel cuspidato-acuminata, basi pleraque cuneata, 



