A. PUNTANDRA. 



299 



names arenaria and ty-pica. Subspecies arenaria is perhaps the more primitive, as sug- 

 gested by the absence of reduction in the leaves and bracts. It has migrated far north- 

 ward and is now restricted to the proximity of the coast from the Carolinas, or somewhat 

 farther southward, to New England. Every attempt made to separate this specifically 

 has failed because of the large series of variations in all essential characters in subspecies 



Table 26. — Varialion in the fruiting bracts of the subspecies of Atriplex penlandra. 



Subspecies a. arenaria: 



Atlantic City, N.J 



Long Island, N. Y. (CluteSe4). 



Groton, Conn. (Bisaell) 



Rhode Island (Olney) 



Westport, Mass 



Seaview, Mass. {Williama). 

 Katama Bay, Mass 



Average. 



Subspecies b. typica: 



Swan Island, Honduras 



Hort. Cantab.' 



Near Tampiro. Mex. (Palmer S3S)'. . 

 Breton I.sland, La. (Tracy and Lloyd , 



Miami, Fla. (Garber) 



Indian River, Fla. (Curtiss S357) 



Curasao (Hrillon and Shafer 2926) 



Porto Rico (Rrillon 4714) 



Porto Rico (Sintensis 3955) 



Matanzas, Cuba (liritton and Wilson 63). . . . 

 Grand Turk, Bahamas (Millspatigh 8998) 



Little Creek, Andros, Bahamas (Brace 6300) 



Water Key, Bahamas (Wilson 8156) 



Atwood Key, Bahamas (Wilson 7422) 



NY 

 NY 

 Gr 

 Gr 



7151 UC 



Gr 



78934 UC 



Average . 



Subspecies d. muricala: 

 Mexico City 



Mexico (Palmer 1166)'. . 

 Near Tehu.acan, Puebla* 

 S.altillo, Coahuila 



Gr 



Gr 



463276 US 

 Gr 



Gr 

 Gr 



NY 

 NY 

 Gr 



NY 

 NY 



NY 

 NY 



NY 



Length of 

 bracts. 



Breadth of 

 bracts. 



48301 US 

 396697 US 

 336285 US 



Guaymas, Sonora (Palmer 119)*. 

 Average 



6 . 5 to 6 . 



5.0 



4.5 5.0 



4.0 5.0 



5.0 



5.6 

 4.2 

 5.0 



6.0 to 7.0 

 5.0 

 4.0 



4.0 6.0 



4.0 

 2.8 3.6 

 2.6 3.0 

 3.5 4 



4.0 

 3.5 



4.5 

 3.7 

 4.0 

 3.5 

 3.5 

 4.0 

 3.6 



4.0 4 5 



3.8 4.0 



3.5 



4.0 

 3.0 



4.0 

 4.0 

 4.5 



4.0 

 4.5 

 3.5 

 3 6 



5.0 

 4.8 

 5.0 

 4.8 

 4.6 

 4.0 

 6.0 



6 

 4.0 

 4.2 



Surface of bracts. 



3.0 



2.8 



2.8 

 3.5 

 3.0 



3.5 

 3.0 



3.0 

 4.0 

 4.0 



Smooth, reticulated. 

 Crested, reticulated. 



Do. 

 Low-crcstcd to smooth, retic- 

 ulated. 

 Crested, reticulated. 



Do. 



Do. 



Not crested, reticulated. 

 Crested, reticulations covered. 

 Not crested, reticulated. 

 Crested or smooth, reticu- 

 lated. 

 Crested, reticulated. 



Do. 

 Crests covering surface. 



Do. 



Do. 



Do. 

 Crested or smooth, reticu- 

 lated. 



Do. 



Do. 

 Crested, reticulated. 



2-crested to smooth, not 



reticulated. 

 Smooth, 3-nerved. 

 3-ncr\'ed. 

 2-crestcd to smooth, not 



reticulated. 

 Nearly smooth, 3-nerved. 



' Type of A. texana Watson, minor variation 16. 



' Type of A. tampicensis Standley, minor variation 15. 



' Type of A. ulonierata Watson, minor variation 9. 



* Type of A. pueblensis Standley, minor variation 14. 

 ' Doubtfully determined. 



typica of the Gulf Coast and West Indies. The acceptance of arenaria as a species would 

 necessitate the use of criteria so trivial that consistency would demand the setting up 

 of a considerable number of other species from what is here described as subspecies 

 typica. Those best acquainted with the variations of typica, especially in the West 

 Indies, advise against treating these as species and the collections already available 

 indicate that such a course would lead only to confusion. A few species have been 

 described from this group. These are accounted for among the minor variations, where 

 the value of their characters is briefly discussed. The type of pentandra is a small, den- 



