32 PROCEEDINGS OF THE AMERICAN ACADEMY. 



impressis, dentibus limbi utroque ca. 5 ; capitulis ca. 30-floris paucis 

 4-11 in corymbo terminali, pedicellis ca. 1 cm. longis erectis vel ascen- 

 dentibus subfiliformibus atropurpureis adpresse villosulis, bracteis 

 linearibus ; involiicri campanulati squamis ca. 15 lanceolati-linearibus 

 subaequalibus vix imbricatis obtusis vel acutiusculis pilosis ca. 5 mm. 

 longis margine praesertim apicem versus pulcherrime ciliatis ; corollis 

 albis 4 mm. longis, tnbo proprio gracili fauces ampliatos subcylindratos 

 subaequanti, dentibus limbi 5 acutiusculis hispido-pilosis ; achaeniis 

 prismaticis praesertim in angulis breviter hispidulis ; pappi setis pul- 

 cherrime roseis. — Steep rocks, Ixtaccihuatl, Mexico, alt. 2440 m., 

 January, 1906, C. A. Pur pus, no. 1578 (type, in hb. Gray). This 

 attractive species of Ewpator'mm was submitted to the writer by Mr. 

 T. S. Brandegee. It approaches E. pruneUifoUum HBK., but differs 

 in its slender flexuous procumbent stems, and more evenly and sharply 

 serrate leaves, which are essentially glabrous above. E. oligocephalum 

 DC, an imperfectly known species, may also be of this affinity ; but it 

 is described as having glabrous involucral scales. 



Eupatorium hospitals Robinson, n. sp., arboreum ; ramis 6-angu- 

 latis striatis molliter lignosis medullosis glabris ; foliis oppositis lance- 

 olato-oblongis serratis vel subintegris petiolatis penninerviis utrinque 

 glabris crassis siccitate nigrescentibus pellucide punctatis liiieolatis- 

 que caudato-acuminatis basi attenuatis 16-18 cm. longis 5-6 cm. latis ; 

 panicula terminali pyramidata oppositiramea patenter ramosa obsolete 

 pilosiuscula vel glabra multicapitulata ; capitulis in summis partibus 

 ramulorum sessilibus parvis ca. 6-floris ; squamis involucri valde inae- 

 qualibus, interioribus oblongis obtusis 5 mm. longis paucis caducis- 

 simis, exterioribus multo brevioribus imbricatis dorso margineque 

 pilosiusculis apice rotundatis persistentibus aetate patentibus ; flos- 

 culis vero similiter albidis vel viridescentibus ; corollis 4 mm. longis, 

 tubo proprio gracili, faucibus cylindratis saepius vix ampliatis ; achae- 

 niis ca. 3 mm. longis brunneis acute 5-angulatis basi attenuatis in 

 faciebus concavis pilosis ad angulos etiam hispidulis ; pappi setis sor- 

 didis ca. 35 corollam subaequantibus. — E. vanillosmoides Hemsl., Biol. 

 Cent. -Am. Bot. ii. 102 (1881), not Sch. Bip. ex Bak. in Mart. Fl. Bras. vi. 

 pt. 2, p. 346 (1876). — Mirador, Vera Cruz, Mexico, Liehmann, no. 43 

 (type, in hb. Gray), Sartorius (hb. Gray) ; Orizaba, Mexico, October, 

 1855, Hchaffmr (hb. Gray), Botteri, no. 613 (hb. Gray). This well 

 marked species appears never to have been described. The plant in 

 question has been repeatedly distributed as Eupatorium vanillosmoides 

 Sch. Bip., but the species to which Schultz really gave this name was 

 a Brazilian plant of entirely different affinity, referred by Mr. Baker 

 (Fl. Bras. vi. pt. 2, p. 346) to the synonymy of E. pyrifoUum DC. It 



