62 PBOCEEDIHGS OF Till-: AMERICAS ACADEMY. 



fertilibua 6-9 cm. longis, amentia maturis 3-5 oblongo-cylindricis atro 

 brnnneis pedunoalatia 7—14 nun. Longis 5—7 nun. diametro; ououlia 

 cuneatu-(il»uv;itis vol suborbicularibus rufobrunneis Lucidis 1.5-2 nun. 

 Longis. — Mountains about Cima Station, Mexico, alt aboul 3000 m., 

 :;n August, L905, C. <•'. Pringh, no. 10,040 typo, in lib. Gray). Re- 

 Bembling Large-leaved A. joruUensis HBK., bul quite lacking the close 

 covering of waxy or granular atoms which characterizes the lower leaf- 

 surface of that species. 



Aluus Pringlei Fernald, n. sp., arbor parva ; ramis ramulisque 

 angulatis, juventissimis cinereo-puberulis mox glabratis; foliis late 

 elliptico-ovatis 4.5-9 cm. longis 3-7 cm. Latis apice breviter acuminatis 

 basi rotundatis, marginibus regularibus vol paulo Binuatis crebre serru- 

 latis, venis subtus prominentibus rufescentibus pilosis; petiolis 0.5— 1 

 cm. Longis piloso-ciliatis ; ramis floriferis elongatis ; amentis J 4-7 

 tenninalibus anthesi 5-6 cm. longis; pedunculis fructiferis 2 valde di- 

 vergentibus crassis; amentis $ 3-4 sessilibus maturitate cylindricis 

 2.2-2.7 cm. longis 0.9-1.1 cm. diametro atrobrunneis ; nuculis crassis 

 late cuneatis et angulatis 2.5-3 mm. longis obscuris pallide brnnneis. — 

 By streams, near Uruapan, Michoacan, Mexico, alt. about 1525 m.. 13 

 November, 1905, C. G. Pringle, no. 10,125 (typo, in hb. Gray). Most 

 nearly related to A. acuminata HBK., whioh has larger oblong-ovoid 

 ashy-brown strobiles 1.5 cm. thick, and larger thick-winged lustrous 

 nutlets. 



Euphorbia arebnsis HBK., var. villicaulis Fernald, n. var. Eume- 

 ra//t/u/.< Benthamianus Ivl. & Garcke, in Kl. Tricocc. 42 (1860), not 

 Euphorbia Bentkami Hiern, Cat. Welw. A1V. PI. i. 943 1900). Eu 

 phorbia arieksis Benth., PI. Hartw. 51, no. 387 (1840), not HBK. 

 Nov. Gen. et Sp. ii. 57 (1817). Caulibus in parte inferiors valde vil- 

 losis ; foliis quam eis formae typicae aliquid tatioribus; intlorescentia 

 laxiore. — In pine forests at Coru Station, .Michoacan, Mexico, alt. 

 1970m., 29 October, 1905, C. d. Pringle, no. KM If, (type, in hb. 

 Gray). This locality is only about 18 Km. to the west of Patzcuaro, 

 which was Hartweg's original station. 



Heliotropiuni calcicola Fernald, n. sp., frutex gracilis 6-15 dm. 

 altusj oortice brunneo exfolianti; ramulia albido-strigoso-puberulis ; 

 foliis lanoeolatis utroqueattenuatis breviter petiolatis apice mueronatis 

 cum pilis minutis et lucidis utrinq'ue obtectis 2-4.5 cm. Longis 

 3-10 nun. latis margine revolutis ; spicis terminalibus et lateralibus 

 geminis <».."», maturitate usque ad ■_', cm. longis; pedunculis gracilibus 

 1.3-2 cm. longis canescentibus ; calyce 1.5-2.5 cm. LongO cum pilis 

 minutis adprossis canescenti, lobis lanceolatis ; corolla anguste urceo- 

 lata •". mm. longaadpressesetulosa, lobis ovatis acuminatis; stylo nullo ; 



