40 : UNITED STATES AND MEXICAN BOUNDARY. 
Matvaviscus DRUMMONDII, Torr. & Gray, Fl. 1, р. 230; Gray, Gen. Ill. 2. t. 131. South 
western and central Texas ; Thurber, Schott. The baccate fruit is red when ripe. 
KosrELETZKYA (ORTHOPETALUM) PANICULATA, Benth. Pl. Hartw. p. 285. Mountain pass near | 
Cocospera river; September; Schott. Corolla, deep rose color. Bentham regards this. 
plant as the type of a distinct section or, perhaps, genus, differing from Kosteletzkya in the erect 3 
convolute petals. ж 
Hipiscus COULTERI, Harvey in Gray, РІ. Wright, 1, p. 23. Western Texas, near the Rio E 
Grande; June—October. 3 
ғыт» DENUDATUS, Benth. Var. INVOLUCELLATUS, @ray, 1. c. p. 23. Gravelly rable ina 
of the Rio Grande, from El Paso down to the Cibolo; May—September ; Parry, Bigelow. | 
Нївївс08 CARDIOPHYLLUS, Gray, l. c. p. 22. Dry limestone hills near the mouth of the Pecos ; 
September—October ; Schott, Bigelow. : 
THURBERIA THESPESIOIDES, Gray, Pl. Thurber, р. 308. (Tas. VI.) Cañon near Cocospera and | 
Ymuris, Sonora; October—November ; Schott. Mr. Schott informs me that this plant is called 
Algodoncello by the Sonorians. i 3 
— 
کے 
BYTTNERIACEA. 
Mzrocura PYRAMIDATA, Linn; Gray, Gen. Ill. 2. p. 134 and Pl. Lindh. р. 165. Western L 
Texas; Schott, Bigelow. 
` MELOCHIA TOMENTOSA, Linn; РС. Prodr. 1, р. 490. On the lower Rio Grande; Schott. 
WALTHERIA DETONSA, Gray, Pl. Wright, 2, p. 24. Magdalena, Sonora; Thurber. 
HERMANNIA Texana, Gray, Gen. Ill. 2, p. 88. t. 135.  Ravines of Devil's river and plains 
: near Howard's Spring ; also at the mouth of the Pecos; September—October ; Bigelow. 
= — AXENIA PUSILLA, Linn; Gray, Pl. Wright. 1, p. 24, 2, p. 24. Dry rocky ravines, Van 
Horn’s Wells, June; Parry ; Sonora; Thurber. 
(0L  AYENIA MICROPHYLLA, Gray, 1. c. Rocky hills of the Rio Grande, near and below El Paso; 
Parry, Bigelow. 
TILIACEJE. 
 CORCHORUS PILOLOBUS, Link; Gray, Pl. Wright, 2, p. 24. Gravelly beach of the Island of 
Lost Rocks, lower Rio Grande, September ; Schott. Santa Rosa valley ; Parry. 
Бе LINACEZ. 
LINUM MULIICAULE, Hook. in Torr. d: Gray, Fl. 1, p. 698, Engelm. in dti Pl. Wright, 1. p: 
27. Valley of the Limpio; July; Pigelow. 
LINUM BERLANDIERI, Hook. Bot. Mag. t. 3,480; Engelm. l.c. Live Oak creek and rocky 
2 places on the Rio Grande; also in Chihuahua. 
= — LINUM PERENNE, Linn; Engelm. l.c. Plains between the Limpia and the Rio Grande, and 
Westward to the Gila. | 
— LISUM RIGIDUM, Pursh; Engelm. l.c. Gravelly hills from El Paso to San Eleazario ; April— 
.. June. 
ыг LINUM RUPESTRE, Engelm. in Gray, Pl. Lindh. 2, p. 232. Rocky places on the Limpia and 
. Rio Grande. | m 
Жи y жел a vidis 2 s. 
