338 



about 1 line long; disk llowera 2: akp.uefi | of a line long.-Colima, February 27 

 and 28, 18i)l. No. 1290. Also collected by Marcus K. Joues, .lune 28, 1892, near 



Armerta. No. 270. 



Tliis species is near F. hnearis and i'\ longifolia, but with different leaves, fewer 



flowers, etc. 

 Porophyllum palmeri Rose, sp. nov. Perennial, much branched and open, several 

 feet hi.rh, reddish and glabrous throughout: leaves opposite, oblong to broadly 

 linear,!) to 20 lines long, mostly obtuse, with linear glands along th.^nargm : 

 Hower'e abnndant, in numerous small corymbs: involucral bracts r>, 6 lines long, 

 linear acute, greenish or with purplish margin, with black glands: corolla tube 

 very slender with f, eipuil slender lobes: akenes linear, 'M lines long: pappus 

 abundant, shorter than the corolla.-Collected in a ravine bottom, in the shade 

 of bushes. Colinia, January 9 to Febrnary 6, 1891. No. 1142. 



For illustration see I'l. xxxiv. 



Tins plant B.'ems nearest P. jorullensg, but differs in its inllorescence, gland- 

 bearing leaves which are not reticulated, its pappus which is shorter than the 



corolla, etc. 

 DysQdia tagetiflora Lag. Gen. et Siiec. Nov. 29 (1816). Very common on grassy plains 



about Colinia. .Ianuarv9 to February 6, 1891. No. ll.")?. 

 Tagetes subulata Idav. .t Lex. Nov. Yeg. Dese. fasc. 1. 31 (1824). Collected <n, the 

 river bank ; also bought in the market under the name " Santa. Maria." It has 

 a very strong, disagreeable odor, and is manufai'tured into an insect powder. 

 Colima. January 9 to February (1, 1891. Noa. 1154 and 1180. 

 Tagetes tenuifolia Cav. Ic. ii. 54, t. 169 (1793). Common in river bottoms at (Johma, 



Fcbruarv 27 and 28, 1891 . No. 1318. 

 Pectis arenaria Bcnth. Bot. Voy. Sulph. 110(1844). Leaves 1 to 2 inches long: 

 akenes 4 lines long. The plant grows in the sand just above high tide at Man- 

 zanillo. December 1 to 31, 1890. No. 971. 

 Pectis coulteri Harvey & Gray, I'l. Fendl. 02 (1849). Very common on sandy 



l)lains. Agiabampo, October 3 to 15, 1890. No. 759. 

 Pectis diffusa Hook. & Arn. liot. Beech. Voy. 290 (1840). Common by river banks 

 at Colima, January 9 to February 0, 1891. No. 115,^. 



This seems to be Hooker and Aruott's species. The pappns, which is described 

 as of 10 to 29 seta-, is quite variable. These idants have many akenes with 10 to 

 14 Beta", but often there are only 3 to 5. 



It is th.> same as Palmer's No. 4 (1886) and Pringle's No. 1814 from Jalisco, both 

 doubtfully referred to the above species. 

 Pectis palmeri Watson, Proc. Amer. Acad. xxiv. ,58 (1889). Very common on rich 



bottoms near creek. Agiabampo, October 3 to 15, 1890. No. 705. 

 Pectis prostrata (^av. Ic. iv. 12, t. 324 (1797;. Not connnon. Found near the 



beach. Man/.anillo, December 1 to 31, 1890. No. 910. 

 Erechthites runcinata (Less.) HC. Prod. vi. 295 (1837); Senech runcinaia Less. 

 Linna-a, vi. 410 (1831). A tall, coarse herb with large leaves 1 to U feet long; 

 flowers red. Ii» moist, shady valleys. Colima, January 9 to February 0, 1891. 



No. 1145. 



Dr. Palmer says this plant seems to have some good medical properties and is 



much used by the medicine venders under the name of "Magitapas." 

 Cacalia pringlei Watson, Proe. Amer. Acad. xxv. 156 (1890), Sterna 6 feet high: 



fl(,wers white. Collected on the grassy slope of a hill. Colima, .January 9 to 



February 0, 1891. No. 1231. 

 Trixis obvallata Hook. & Arn. Bot. Beech. Voy. 300, t. 65 (1840). On grassy lulls 



about Colima, January 9 to February 0, 1891. No. 1235. Also from the mar- 

 kets. No. 1400. 

 Tiixis alata Hon, Traus. Linn, Soo. xvi. 192 (1833). A bushy plant, 5 to 10 feet high. 



Nciu- the base of the uionutams. Manzaniii(., December 1 to 31, 1890. No. 897. 

 'fhia plant, wl^icU \9 pow collected for the eecon4 time, w;is obtained by Seas? 



