Gastille.la Parkaii sp, nov 
nafctilleia Parksil sp, nov. Hoot annual; stem simple, 25-60 cm, tall, 
densely hirsute; leaves linear, up to 10 cm, long and 6 mm, wide, usually with 
several lateral linear to filiform lobes, which may be as much as 4 cm, long, or 
inconspicuously 1-2-toothed, or sometimes entire, 3-nerved, finely pubescent on 
both surfaces; bracts 2 cm, long or more, green, pubescent, 3-5 mm, broad, entire 
or with one or two lobes just below the dilated apical portions, when lobed these 
are linear, rounded, and pure white, the dilated apical portion is about twice as 
broad as the lower portion of the bract, pure white in color, indistinctly pubescent, 
frequently longer than broad, and more or less acutish; sepals 18t»25 mm. long, those 
of each side united to the apex, the apical portion dilated, more or less undulately 
oblique, one side in cases being as much as 3 mm, shorter than the other side, and 
pure white; corolla 18-27 mm, long, frequently not exceeding the calsrx, the posterior 
lip 8-9 mm, long, pubescent, and with thin, smooth, white margins, the anterior lip 
3 mm. long or less, the 3 lobes almost distinct, narrow, thick, dark-green, more or 
less glanduleu:*-pubescent; stigma nearly 1 mm, broad; capsules up to 15 mm. long and 
6-7 mm, broad, ovoid, smooth, the stout triangular-shbulate beak as' much as 2 mm, 
long; seed cuneate, scarious-winged, conspicuSusly reticulate, up to 1.5 mm. long 
and .5 mm, broad. 
Type specimen. No, 18057, collected May 17, 1936, on Ransom Island by 
Mr. H, B, Parks, is deposited in the Gray Herbarium, This plant occurs along the 
Gulf Coast from Old Indianola to Corpus Christi. While closely related to C, indlvlsa 
Sngelm,, our experience with the plant in the field serves to convince us that it is 
a distinct species, and not at all an albino form of that species> as so taken by 
Dr. Francis W. Pennell in "THE SCROPHJIARIACEAE OF EASTERN TEMPERATE NORTH AMERICA,” 
p. 541, 1935, and quoted herewith: "Albino specimens, with snow-white bracts, re¬ 
ported as forming entire colonies on shell and sand-reef between Aransas Pass and 
Port Aransas, Ban Patricio County, Texas, April 21, 1935; specimen from G, W. Goldsmith 
in Herb, Academy of Natural Sciences of Philadelphia.” Until recently we were not 
familiar with the above reference. Our plant appears to differ from C, indivisa 
most markedly in coloration, but in other particulars as well, even after considering 
variations in the leaves and bracts of both. In the white-flowered plant the leaves 
usually are lobed instead of usually entire, again the bracts average narrower and the 
dilated apical portion frequently is longer than broad and acutish, and not markedly 
pubescent, as contrasted to the usually shorter and broader and the conspicuously 
dense pubescence dilated apical portion of the bracts of C, indivisa , which too are 
conspicuously densely pubescent;,and finally in that the dilated distal portion of 
the sepals are undulately oblique, rather than rounded-truncate. 
I 
