OF ARTS AND SCIENCES. 339 



lines long. Flowers small. Flower-stalks in fruit from 3 to 6 lines in 

 length, divergent. 



■^r- +- Hispida : sepala sursum vix ampliata. 



7. N. HISPIDA : setis albis rigidis undique hispida ; foliis oblongo- 

 linearibus seu spathulatis ; tloribus terminalibus demum lateralibus 

 subsessilibus scepe geminis vel subscorpioideo-seriatis ; sepalis angustis- 

 sime linearibus ; capsula oblonga. ]^. Jamaicensis ? Engelm. & Gray, 

 PI. Lindh. 1. no. 130, non Linn. J^. dichotoma, Torr. Bot. Mex. Bound. 

 Surv. p. 147, excl. var. N. hijlora, var. sjyathulata, Torr. in Pacif. R. 

 R. Surv. 5. p. 362. Texas and the Mexican borders of the Rio Grande ; 

 Coll. Berlandier, no. 2385, 2443, 2486, and perhaps 1420 ; Drummond, 

 III. no. 195 ; II. 309 ; Lindheimer, no. 130, and in later collections ; 

 W. Texas and New Mexico, Wright, no. 493, 494, 495, 1585, 1586 ; 

 Fendler, no. 643. Less hispid forms probably referable to this species 

 are from New Mexico or Arizona, no. 1584, Wright ; from the moun- 

 tains of San Antonita, New Mexico, Dr. Bigelow, and the same from 

 Fort Yuma, California, Major Thomas, and from the same district by 

 Fremont ; also Arizona, Thurber. 



§ 3. Folia baud decurrentia, abrupte longius petiolata, subtus pube 

 sericeo-villosa argenteo-incana ; pedunculi cymoso-pluriflori, flori- 

 bus pedicellatis pro genere maximis, corolla f-pollicari. 



8. N. SERicEA, Willd. ; Rcem. & Schult. Syst. 6. p. 189. N. longi- 

 fiora, Chois. Hydrol. p. 20, t. 2, f. 2, & in DC. Prodr. Mexico : Coll. 



Coulter, no. 914, 915. 



*5,j* Species dubia. 

 N. HiRSUTA, Martens & Galeotti, ex Walp. Repert. 6. p. 565. 

 Oaxaca, Mexico. 



Borraginacece. 



Heliotropium AN05IALUM (Hook. & Am.) : fruticosum, depressum, 

 strigoso-incanum ; foliis confertis lineari-lanceolatis basi attenuatis 

 spathulatis ; cymis pedunculatis glomerulifloris ; calycis lobis in^quali- 

 bus imbricatis 2 exterioribus ovatis seu oblongis, ccetex'is linearibus ; 

 corollas tubo extus strigoso-sericeo calyce bis longiore ; antheris apicibus 

 brevissime barbulatis primum cohoerentibus, nuculis 4 rarius 5-6 

 scabris. Lithospermum incanum, Forst. Pentacarya heliotropioides, 

 DC. — Coral Islands, and Sandwich Islands. 



Var. /3. ARGENTEUM : pube molliore densiore niteute incanum ; flori- 

 bus paullo majoribus. — Sandwich Islands. 



