PITTOSPORACEAE. — PITTOSPORUM 329 
This is a very common shrub on the cliffs at low altitudes in western Hupeh and 
eastern Szech’uan, where it is known colloquially as Ai-hua-tzü. The typical form, 
with rhombic-obovate leaves attenuate at the base and often abruptly caudate- 
acuminate, is very well marked, but some specimens approach P. heterophyllum 
Franchet, and it may be that these species are not really distinct. Henry’s specimens 
were distributed by the Kew herbarium as doubtful forms of P. pauciflorum Hooker 
& Arnott, but they are not this species, which is characterized by its few-flowered 
umbellate inflorescence, its oblong acute sepals and by its fruit, which is three times 
the size of that of P. truncatum. On E. Pritzel’s type the leaves are somewhat 
malformed, but such leaves may often be found on specimens, as on Henry No. 
5513. Gagnepain clearly defines the difference between this and P. pauciflorum 
Hooker & Arnott, but in taking up Oliver’s varietal name he unfortunately over- 
looked that given by E. Pritzel. 
Pittosporum heterophyllum Franchet in Bull. Soc. Bot. France, 
XXXIII. 415 (1886); Pl. Delavay. 76, t. 18 (1889). — Diels in Not. 
Bot. Gard. Edinburgh, VII. 30, 95 (Pl. Chin. Forrest.) (1912). 
Western Szech'uan: Wén-ch'uan Hsien, valley of Min River, alt. 
1000-1300 m., July and October 1908 (No. 1146; bush 1-1.5 m., 
flowers yellow); Yachou Fu, thickets, alt. 330-600 m., November 
1908 (No. 3179; bush 1 m. high); without precise locality, cliffs, alt. 
2000-3500 m., May, June 1904 (Veitch Exped. Nos. 3229, 3232). 
Yunnan: Lichiang Range, alt. 2800 m., May 1906, G. Forrest (No. 
2084). 
This pretty species is common on cliffs and in rocky places generally in the warm 
and arid valleys of western Szech'uan. The leaves are heteromorphic, but on 
some specimens they are rather similar in shape to those of P. truncatum Pritzel. 
Pittosporum saxicola Rehder & Wilson, n. sp. 
Frutex 0.3-2 m. altus, saepe prostratus; ramuli graciles, teretes, 
flavo- v. brunneo-cinerei, hornotini puberuli. Folia persistentia, coria- 
cea, oblonga v. anguste elliptico-oblonga, obtusa, mucronata, basi 
cuneata v. attenuata, margine revoluta interdum leviter crenulata, 
1-5, pleraque 2-3.5 cm. longa, et 0.3-0.9 cm. lata, glabra, supra niti- 
dula, intense viridia, subtus pallidiora, nervis utrinsecus 4-8 supra 
ut costa leviter impressa subtus leviter elevatis; petioli 1-5 mm. longi, 
marginati. Flores lutei, fragrantes, solitarii v. plures in cymis 
umbelliformibus ramulos breves terminantibus; pedicelli 3-8 mm. 
longi, puberuli; bracteae membranaceae, lanceolatae, 1-2 mm. longae, 
caducae; sepala libera v. fere libera, ovata, acuta v. obtusa, 2-2.5 mm. 
longa, glanduloso-ciliolata; corolla tubuloso-campanulata, 7-8 mm. 
longa, petalis oblongis 2-2.5 mm. latis coherentibus et tubum for- 
mantibus, parte libera patente tubum dimidium subaequante; stamina 
petalis breviora sed tubum superantia, filamentis subulatis 44.5 
