430 University of California Puhlications in Botany [Vol. 10 



A remarkable species strongly characterized by its very long, 

 slender, densely cinereous-pubescent calyx lobes which attain a length 

 of 3 cm. In vegetative characters it resembles Jasminum hifarium 

 Wall, and manifestly belongs in the same general group as that species. 



Jasminum nervosum Lour. 



Fl. Cochinch. 20. 1790. 



Indo-China, Cho-Ganh, Dr. A. Petelot 907, June, 1923. In hedges. 



The specimen matches material collected by Mr. McClure at Hue, 

 where Loureiro lived while in Cochin China, and agrees closely with 

 the original description except that the leaves are simple, not pinnate. 

 I explain the discrepancy on the assumption that Loureiro mis- 

 interpreted the simple distichous leaves or that he deliberately 

 described the leaves as imparipinnate to bring his description into 

 conformity with the other Linnean species of the genus known to and 

 described by him. It is the same as the form figured by Ker, Bot. 

 Reg., vol. 7, 1821, t. 521, as Jasminum angustifoUum (non. Vahl) var. 

 laurifolium Ker, which in turn is the same as Jasminum laurifoliivm, 

 Roxb. Loureiro 's specific name takes precedence. India to southern 

 China and Indo-China. 



VERBENACEAE 



Premna acuminatissima Merr. sp. nov. 



Frutex vel arbor parva, partibus junioribus leviter pubescentibus ; 

 ramis glabris, pallidis, ramulis, teretibus, rubro-brunneis, junioribus 

 leviter pubescentibus; foliis ovatis ad elliptico-ovatis, perspicue longe 

 acuminatis apiculatisque, basi subacutis ad rotundatis, chartaceis, 

 olivaceis, nitidis, 5 ad 9 cm. longis, 2.5 ad 4 cm. latis, punctatis, supra 

 glaberrimis, subtus glabris vel ad costa nervisque obscure pubes- 

 centibus, nervis utrinque plerumque 3, perspicuis, subadscendentibus, 

 anastomosantibus ; petiolo circiter 1 cm. longo, leviter pubescente ; 

 inflorescentiis terminalibus, paniculatis, laxis, angiiste pj^ramidatis, 

 6 ad 8 cm. longis, obscure pubescentibus ; floribus 5 ad 6 mm. longis, 

 extus puberulis, pedicellis 2 mm. longis, bracteis bracteolisque lanceo- 

 latis, acuminatis, bracteis 2 mm. longis, bracteolis 1 mm. longis ; calycis 

 cupulatis, 2.5 mm. longis, obscurrissime 2-labiatis, subaequaliter 

 5-dentatis, dentibus brevibus, acutis ; corollae tubo 2 ad 2.5 mm. longo, 

 subaequaliter 4-lobato, lobis ovato-rotundatis, 2.5 ad 3 mm. diametro ; 

 stylis filamentisque 3 mm. longis, glabris. 



Indo-China, Cho-Ganh, Dr. A. Petelot 1434, September, 1923. On 

 limestone hills. 



A species strongly characterized by its slenderly acuminate, nearly 

 glabrous leaves and its narrowly pyramidal panicles. The acumen on 

 the larger leaves is frequently 1.5 to 2 cm. in length. 



