24 



859. Trifolium Palmeri Wutson. Qniio (H)iiiitioti on tlio Ronth end in wet sand in 



(•;iriOliM. (No. y*) (if is?!"!,) 

 832. 'Ilir same. Vory coimiion in hirj^c inaiss(\s in canons ami plains at tlio. north 



(■nil. ThiH plant is widely distribnted over the island, and forms tho main 



food supply for the goats. 

 831. Trifolium microceplialum Piush. A very common plant at the north end in 



canons and exposed places. It is m nch eaten hy goats. April 1. (No. '27 of 



1875.) 

 840. Melilotus Indica All. Not before reported from the island. Common along 



the beach, ascending into shady e;inons and perhaps introduced with the 



goats. Norlh end of island. April 1 to :5. 

 853. Hosackia oinithopus Cireeue. Only one plant found near the ujonth of a 



eanon at the north end. Mr. Greene ionnd it abundant in the middle of the 



island, IKS,"). We have not seen Palmer's 1875 plant. 

 847. Vicia exigua Nntt. Oomnmn in shady sides of ravines at the imrth end. Dr. 



Palmer on his first visit <inly saw a single small specimen. Mr. Greene says 



it was not nufMmimon. 

 893. Mentzelia dispersa Watson. Common among shady rocks in canons. South 



end of the island M.areti 2'.». (No. '.\2 of 1875.) 

 850. Galium apariae L. At nortli end. April 1. (No. 'A') of 1375.) 



900. Tillaea leptopetala Benth. 



902. Opuntia prolifera Engl. Grows on hoth ends of tho island on stony ridges 

 and steei» mountain sides. I? to 5 fo(it high ; not in llowor. Colloctcd by Mr. 



Greene. 

 Mesembryanthemum crystallinum Linn. Dr. Palmer wrote that this grew on tho 

 island, but collected no sp cimens. Mr. Gr< ene also collected it. 



901. Mamillaria Goodridgeii Scheer. With five to six glohose heads. At first cov- 



ered witli a white wool hut becoming glabrate. Common on south end of 



island. Not found by Dr. Palmer in 1875, hut collected by Mr. Greene in 18H.5. 

 899, Amblyopappus pusillu,s U. &- A. March 30. (No. 40 of 1875.) 

 849. Micioseris linearifolia (hay. A few spc^cinions only collected on the north 



end of the island. (No. .50 of 1875.) 

 895. Filago .^.rizonica Gray, South end of the island. March 30. (No. :i8 of 



187.5.) 

 885. Gnaphalium Sprengelli II. & A. Only three plants seen, these in the bed 



of an arro.yo. South end. March 29. Collected hy Palmer in 1875, but 



without number, 

 874. Hemizonia( Hartmannia) Palmeri Rose, n.sp. Pereuuial,Tvitli thick woody base, 

 forming NinaU bunches; branches decumbent or ascending, with abundant, 

 white, silky pubescencts not at all viscid : leaves nnmerous, silky,!) to 12 lines 

 long, linear to narrowly oblanceolato : Iieads munorous, somewhat corym- 

 bose : involucre 2 lines high : rays eight, three-teothed : tho ehalV forming a 

 cup about the disk-flowers cleft to the middle, the divisions linear-acuminate ; 

 disk flowers about ten, the akenos sterile: pappus of six to twelve, linear- 



.,/ acuniiuate scales, the ray akenea barely a lino long, the rostollum very short, 



I - and coini)ressed clo.sely against tlm top of the akone. 



A peculiar species, and by far the most decided shrub of tho genus. In many 

 respects near to the f(dlowiug, but in leaves, pubescence, inliorescence, etc., 

 very dillcrent. A very common plant on tho south end of tho island, in 

 all exposed places Dr. Palmer writes that it is a very attractivt; plant in lliat 

 dry lalitmle. The Ibn^e siiccies from this island seem to form a peculiar 

 group by themselves. 

 865. Hemizoiiia (Hartmannia) Greeneana Rose, n. sp. Perennial, forming l.ugo 

 round bnncbes 'i to :] feet high, willi sterile brauehos hanging down the sides, 

 somewhat pubescent, more or loss viscid throughout: leaves crowded, da'k 



