602 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Range: Western Texas to Lower California. 



New Mexico: Las Cruces; Deming; Tortugas Mountain. Dry mesas, in the Lower 

 Sonoran Zone. 



2. Proboscidea louisiana (Mill.) Woot. & Standi. 

 Martynia louisiana Mill. Gard. Diet. ed. 8. no. 3. 1768. 

 Martynia proboscidea Glox. Obs. Bot. 14. 1785. 



Type locality: Vera Cruz, Mexico. 

 Range: Iowa and Indiana to Mexico. 



New Mexico: South of Roswell; Lake Arthur; Albert; Buchanan. Plains, in the 

 Upper Sonoran Zone. 



3. Proboscidea parvirlora (Wooton) Woot. & Standi. 

 Martynia parviftora Wooton, Bull. Torrey Club 25: 453. 1898. 



Type locality: San Augustine Ranch, at the base of the Organ Mountains, New 

 Mexico. Type collected by Wooton (no. 580). 



Range: Western Texas and southern New Mexico. 



New Mexico: Las Cruces; San Augustine Ranch; Grain Brothers Ranch; Carlisle; 

 Gila River; Engle; Socorro. Dry mesas and low hills, in the Lower Sonoran Zone. 



Order 46. PLANTAGINALES. 



133. PLANTAGINACEAE. Plantain Family. 



1. PLANT AGO L. Plantain. 



Annual or perennial acaulescent herbs, with usually numerous basal leaves; inflores- 

 cence spicate, on scapes; flowers perfect, monoecious, or dioecious, sessile, bracteate; 

 calyx of 4 persistent, often scarious-margined sepals; corolla hypogynous, scarious or 

 membranous, nerveless, usually persistent, tubular-sal verform, with 4 erect or spread- 

 ing lobes; stamens 4 or 2, adnate to the throat of the corolla; ovary superior, 1 or 

 2-ceiled or apparently 3 or 4-celled ; fruit a circumscissile capsule or pyxis ; seeds 1 to 

 several in each cell. 



KEY TO THE SPECIES. 



Leaves linear. 



Pubescence loose and spreading; bracts much longer than the 



flowers 1. P. purshii. 



Pubescence sericeous, appressed; bracts shorter than the 



flowers 2. P. argyrea. 



Leaves lanceolate to ovate. 



Spikes short, oblong; seeds concave on the faces 3. P. lanceoluta. 



Spikes elongated, cylindric; seeds not concave on the faces. 

 Leaves ovate, abruptly contracted at the base; seeds more 



than 2 in each cell 4. P. major. 



Leaves lanceolate, gradually tapering to the petiole; seeds 

 not more than 2 in each cell. 



Plants with copious brown wool at the base 5. P. eriopoda. 



Plants not woolly at the base 6. P. tweedy i. 



1. Plantago purshii Roem. & Schult. Syst. Veg. 3: 120. 1818. 



Plantago gnaphalioides Nutt. Gen. PL 1: 100. 1818. 



Plantago patagonica gnaphalioides A. Gray, Syn. Fl. 2 1 : 391. 1878. 



Type locality: "In dry situations on the banks of the Missouri." 



Range: British America to Arizona, Texas, and Missouri. 



New Mexico: Carrizo Mountains; Farmington; Sierra Grande; Nara Visa; Moun- 

 tainair; Pajarito Park; Clayton; Laa Vegas; Springer; Santa Fe; Socorro Mountain; 

 Cliff; Carrizalillo Mountains; Aden; Las Cruces; Organ Mountains. Dry plains and 

 hills, in the Lower and Upper Sonoran zones. 



