217398. 



From Kalman. 



217399. 



From Sjogestad. 



217400. 



From Kolback. 



217401. 



From Avesta. 



217302. 



From Koping. 



217403. 



From Vickleby, Oland. 



iceae. 



Corn. 



208 PLANT INVENTORY NO. 162 



217390. Operculina tuberosa (L.) Meisn. Convolvnlaceae. 



From Angola. Seeds presented by the American Consulate, Luanda. Re- 

 ceived Apr. 30, 1954. 



217391. Solanum. Solanaceae. 



From England. Tubers presented by H. S. Howard, Plant Breeding Institute, 

 Cambridge. Received May 3, 1954. 



Sherry Champion X Shamrock. 



217392 to 217403. Trifolium medium Huds. Fabaceae. 



Mammoth clover. 



From Sweden. Seeds presented by the Sveriges Utsadesforenings Ultunafilial, 

 Uppsala. Received May 3, 1954. 



217392. From Sunnersta, Uppland. 



217393. From Eke, Gotland. 



217394. From Ultuna. 



217395. From Lejondal, Uppland. 



217396. From Ansio. 



217397. From Lindorid, Skane. 



217404 to 217413. Zea mays L. Poaceae. 



From Iowa. Seeds planted at the Regional Plant Introduction Station, Ames. 

 Numbered May 4, 1954. 



Varieties showing extreme variation. 



The following types and varieties are considered endemic and are main- 

 tained as germplasm for breeding work. 



Open-pollinated. 



217404. Argentine Pop. A small-eared, tiny-kernelled, prolific variety 

 from the Argentine. Red pericarp. Similar to the grave popcorns of 

 Argentina. 



217405. Gourdseed. The extreme white dent corn from the southern 

 United States, which is one of the ancestors of modern United States 

 varieties. 



217406. "Japanese Hull-less." Neither Japanese nor hull-less. High 

 quality rice popcorn very similar to the ancient popcorns of Mexico City. 

 Low knob numbers. Difficult to smear. High row number; ears more or 

 less f asciated. 



217407. Lady finger. A late-maturing, prolific, high quality popcorn, very 

 similar to the ancient popcorns of Peruvian graves. 



217408. Longfellow Flint. A typical yellow 8-rowed Northern Flint. 



217409. Maiz Chapolote. Primitive popcorn from western Mexico. Shows 

 close similarity to teosinte in various characters. Narrow cob, irregular 

 kernel shape, brown pericarp. Large knobs, variable in number from 

 plant to plant. 



217410. Papago Flour Corn. Obtained from the Papago Indians in the 

 desert south of Tucson, Arizona. Yellow flour corn of high quality for 

 human food. Drought resistant; early maturing in late plantings; slender 

 leaves, long mesocotyl. 



217411. Tama Flint. Essentially a northern flint variety from the Sac 

 and Fox Indians in Iowa. Slightly mixed with Great Plains maize. 



217412. Totyi Thumb. Very early and small-eared. 



217413. Zapalote Chico. From southern Mexico, but comparatively inde- 

 pendent of length of day; 8- to 10-rowed; very short ears; very dented 

 kernels. 



