216 CONTRIBUTIONS FROM THE RATIONAL EBBBABITJM. 



fruit, thin, 5 to 7-nerved, with a slender mucronate tip, inclosing a pales of I 

 length and a staminate flower: fruit but little indurate, the lemma 5-nerved, with 



an attenuate spreading tip. 



Sometimes cultivated for ornament in the Southern States. An allied species, 

 Pennisetum holeoides (Roxb.) Schu.lt., 1 ' has been cultivated under the name "P. 

 ciliurc," while true P. ciliare has been more generally known a- P 

 Tn P. holeoides the bristles are very plumose, making the panicles soft and downy. 



DISTRIBUTION. 



Arid open ground, tropics and subtropics of the Eastern Hemisphere, spaai 

 introduced in the American tropics (only American specimens cited below). 

 Guatemala: Zacapa, Pitlier 1751. 

 Porto Rico: Ponce, Brilton, Coivell & Brown 5389. 



4. Pennisetum glaucum (L.) R. Br. 



Panicum glaucum L. Sp. PI. 56. 1753. "Habitat in Indiis." The first phrase 

 name cited is "Panicum spica tereti, involucellis bifloris faseieulato-pilosis. lb 

 zeyl. 44." The Flora Zeylanica is Linnaeus 's own work, and the exceptionally 

 detailed description given 15 seems to show that it was drawn up from the plant which 

 is still preserved in the British Museum. 16 The description given in tl. 8] 

 Plantarum, "Setae in spica longitudine flosculorum. Foliorum vaginae oris pil 

 Dum spica recens prodiit Flosculi in series dispositi observantur, " also ap] 

 wholly to the Ceylon specimen, as does the name "glaucum" itself. But Lino 

 confused the matter by citing four phrase names, besides that from Flora Zeylai 

 One refers to a Plukenet figure that probably represents Ehftrophoi 

 one is a Tournefort phrase that is unidentifiable, and two, given Bl 

 identifiable as green foxtail, XJhaelochloa viridis (L.) Scribn., and yellow to 

 C. lutescens (Weigel) Stuntz, respectively. The variety 7 was taken by subsequent 

 authors as the basis of P. glaucum L. and the names Setaria glauca and Chaeto 

 glauca have been applied to yellow foxtail. 



Holcus spicatus L. Syst. Nat. ed. 10. 2: 1305. 1759. A brief diagnosis, which appli< a 

 to P. glaucum and fails to agree with the generic diagnosis of Holcus immedis 

 above, is given, and "Pluk. t. 32. f. 4." is cited. Plukenet 's figure 17 repree 

 P. glaucum. No locality is mentioned, but Linnaeus later "gives '"Habitat in 

 India' ' for this species. 



Cenchrus spicatus Cav. Descr. PI. 304. 1802. Based on Holcus spicatus I . K\ atze 

 (Rev. Gen. PL 3: 346. 1898) published this combination anew, based 08 

 cillaria spicata Willd." 



Pennisetum typhoideum L. Rich, in Pers. Syn. PL 1: 72. 1805. Holcus sp 

 and Plukenet 's figure, pi. 32, f. 4, are cited. 



Penicillaria spicata Willd. Enum. PL 1037. 1809. Based on Holcus spiral*. 



Pennisetum glaucum R. Br. Prodr. 11. Nov. Holl. 1: 195. 1S10. The nam. : 

 on Panicum glaucum L., though the plant to which Brown applied it was evidently 

 a species of Chaelochloa. j 



14 Mant. 2: 148. 1824. 



15 Fl. Zeyl. 18. 1847. (The number 44 refers to the species, which is do. • 



16 For the identity of this specimen see Trimen (Journ. Linn. Boc. Bot. 2 ': 

 1896), and for the reasons for restoring this name to pearl millet see Stunt/.. > 

 Dept. Agr. Bur. PL Ind. Inv. Seeds 31: 84. 1914; Hitchcock, Amer. Journ. Bot. 

 2: 299, 300. 1915. An analysis of the various Linnaean names that have been 

 applied to pearl millet will appear in an early number of the American J 

 Botany. 



17 Phytogr. 1: pi. 32. f. 4. 1691. 

 ls Sp. PL ed. 2. 2: 1483. 1763. 



