400 
Vernacular name “ Conche ” (Gonzalez). 
The material of Gonzalez 159 in the Kew Herbarium consists 
of three branchlets bearing leaves, but without flowers or fruit. 
The stipular spines are 1-1-7 cm. long, and the “ interpetiolar 
stipules’ are subulate, as described by Pittier (l.c.), but the 
leaflets are pubescent on the lower surface, whereas those of 
P. lanceolatum are glabrous, so far as is known. Flowering 
material is required in order to verify the identification. 
Pittier, who has made a special study of the spicate-flowered 
species of Pithecolobium of the ungurs-cati section (l.c. 455-464), 
treats P. lanceolatum (Humb. et Bonpl.) and P. ligustrinum 
(Jacq.) as independent species, but Standley (CNH. xxiii. 393) 
follows Bentham in uniting them. For the combined species 
Standley adopted the name P. lanceolatum, being under the 
impression that Mimosa ligustrina Jacq. was published in 1809, 
subsequently to Inga lanceolata Humb. et Bonpl. (1806) and 
Mimosa ligustrina Vahl (1807). But as Willdenow (Sp. PI. 
iv. pars 2, 1007; 1806) cited Mimosa ligustrina Jacq. Fragm. 29, 
t. 32, it is evident that the latter was published previously. 
The combined species should therefore bear the name Pithecolobium 
higustrinum (Jacq.) Klotzsch ex Benth 
P. ligustrinum (Jacq.) Klotzsch ex Benth. in Trans. Linn. Soc. xxx. 
571 (1875), partim; emend. Pittier in CNH. xx. 461 (1922).— 
Mimosa ligustrina Jacq. Fragm. 29, t. 32, fig. 5 (1800-1806). 
Inga ligustrina Willd. Sp. Pl. iv. pars 2, 1007 (1806); DC. 
Prodr. ii. 437 (1825). irre tausos lanceolatum Standley in 
CNH. xxiii. 393, partim. 
Culiacan, Brandegee. 
P. mexicanum Rose in CNH. i. 100 (1891); CNH. xxiii. 397. 
Sinaloa (fide Standley). 
P. pulchellum Pittier in CNH. xx. 462 (1922). 
Culiacan, ae 
. in PAA. xxiv. 49 (1889); CNH. xxiii. 397. 
"Sinaloa (fide ‘Standley). 
Vernacular name “ Palo gato ”’ 
Ser ga Pte (L.) Benth. in Hoe Lond. Journ. Bot. 1844, 
. 200; Standley in CNH. xxiii. 394.—Mimosa unguis-cati L. 
©. sivielog (fide Standley). 
It is possible that this may prove to be some other species. 
On account of the known geographical distribution of P. unguis- 
cati, its occurrence in Sinaloa is improbable. 
Standley ascribes the combination P. unguis-cati (L.) to 
Martius, Hort. Monac. 188 (1829), but this publication is invalid 
under International Rules, as the genus Pithecolobiwm was not 
described until 1837. 
Keaterolobiamn: ¢ cyclocarpum (Jacq.) Griseb:; CNH. v. 228; 
XXI11 
Colomas, Bose 1759. 
