(320 ADDITIONS AND CORRECTIOI^S. 



wanls ; the otlier tliree oblong, united at the very base. Filaments (move or less) 

 adnato to near the tiaoat or tlie upper part of the tube of tlio corolla, then free or 

 further adnato to one side, and monadeljthous : anthers oblong, united, three of 

 them naked, two tippnd with a snuill tuft of very uno<iual rigid bristles. Stigma, 

 ovary, and ai)paiently capsule of Lobelia, of which the jjlaut has the habit, except 

 in the remarkably long tube of the corolla. — Name in acknowledgment of the 

 services to North American Botany rendered by the discoverer, Dr. Edward Palmer, 

 who more than any one else has explored the botany of the region to which it 

 belongs, viz. Arizona, the southern frontiers of the State of California, and Lower 

 California. — Troc. Am. Acad. xi. 80. 



I. P. debilis, Cray. Herb a foot or two high, jtrobubly from a perennial root, 

 smooth and ylabrous ex(;t!])t the inside of the corolla ; stem weak and slender, sim- 

 ple or at length loosely hnmched : leaves thin (the lowest not seen) : the caulinu 

 ones lineur-lauceolate, 2 or 3 inches long, entires or rarely a little denticulate, sessile, 

 alternate, above gradually diminished into slender bracts of the several-llowered 

 leafy raceme : limb of the corolla bright blue ; the tube whitish, half or three 

 I'ourtlis of an ini:h long, hairy insidi'. 



Var. serrata, (iray. Minutely piiheruiont, at least toward tiie mnnniit and the 

 tube of the corolla : leaves idniost all acutely serrate, or the upiier merely denticu- 

 late ; the lower spatulate or obovate (one or two inches long, S(.)metin)es an inch 

 broad) : llowers rather few and crowdetl. 



Great Canon of the Taiitilhis Alountuins, in Lower California, Sept. 1875, Dr. E. Palmer. The 

 variety, on wet sandstone rocks in the valley of Ojai Cieck, Ventura Co., July, 1875, Dr. Roth- 

 rock in Wheeler's Exped. The base of the eoroUa-tube inclines to break up in age as it were 

 into claws of the live conii»(inent petals, as in Loldia splciidims, &c. Then the adnuto lila- 

 inenta becoiuo free below, remaining coalescent above. 



Page 47(i. 1. ASCLEPIAS. 



7. A. leucophylla, Kngelm., var. obtusa, Gray. Wool deciduous, hardly 

 any on the outside of the corolla : leaves oblong, all the lower very obtuse or trun- 

 cate : hoods rather broader and truncate. 



Bartlett's Canon, near Santa Barbara, Rothrock in Wheeler's Exped., 1875. The hoods in this 

 species and in A. eriocurpa have u lanielliform fold or duplication on each side below near the 

 interior margin. 



Page 478. 4. LACHNOSTOMA, HBK. 



Calyx, corolla, fruit, &c., nearly as in Sarcostemma. Crown (in the following 

 species) consisting of a hood-like appendage behind each anther, not uidike that of 

 Asdepias. Anthers short, and the pollen-masses horizontal, otherwise nearly as in 

 Asclepias. — A tropical and subtropical American genus of the Ganolob us tiihe, 

 chielly of twiners ; mostly with opposite cordate and petioled leaves, and snmll 

 dull-colored flowers. — Benth. & Ilook. Gen. ii. 7G7. 



1. L. hastulatum, (iray. A slender twining i)lant, herbaceous or nearly so, 

 clothcil with a line and dense soft pubescence : leaves hastate, 2 or 3 lines long, on 

 a slender petiole : lloW(-rs solitary and scattered, nearly sessile, whitish : ealyx 

 5-parted, the divisions linear : eorolla 5-parted, the divisions oblong-linear, almost 

 glabrous inside : hoods behind the anthers oblong-obovate, white, acutely 3-toothed 

 at the apex, and with a short trianguhir-suhulate internal horn : follicles fusiform, 

 beset with a few small antl soft processes. — Proc. Am. Acad. xi. 87. 

 Tantillas Cahon, witbin the borders of Lower California, Dr. E. I'ulmer. 



