606 PROCEEDINGS OF THE AMERICAN ACADEMY. 
brevibus stigma superantibus ; stylo brevi recto ; stigmate bilamellato, 
partibus obovatis 1 mm. longis 0.5 mm. latis ; capsulis calycem super- 
antibus oblongo-ellipticis ad basim dehiscentibus cum duabus valyulis 
divergentibus ; placentis paulo intrusis muricatis ; seminibus numerosis 
brunneis suborbiculatis minute papillosis vel irregulariter et interrupte 
corrugatis.— Micuoacan: Morelia, on a bare damp mesa, 29 November, 
1907, C. G. Pringle, no. 10,408 (type, in hb. Gray). This tiny plant 
seems nearest to Centaurium tetramerum (Schiede), n. comb. 
(Erythraea tetramera Schiede ex Schl. in Bot. Zeit. xiii 920), and re- 
sembles that species in its 4-merous flowers and dehiscent fruit, It 
differs, however, in the short corolla-tube not exceeding the calyx, the 
leaves with scarcely perceptible nerves, the fasciculate flowering stems, 
the persistent basal leaves, the striate peduncles, and the bilamellate 
stigma. The color of the flowers is not readily discernible in the dried 
specimens, but the lower part of the limb of the corolla appears to be 
yellow and the tips of the lobes tinged with pink. : : 
Spigelia quaternata, n. sp., radicibus fasciculatis ; caulibus multis 
ex caudice breve, 3 dm. altis purpureis minute scabridis, parte bape 
riore angulatis ; foliis saepissime quaternatis supremis oppositis ovato- 
oblongis apice acuminatis 4-8 cm. longis 1-3 em. latis integris superne 
glabris vel scabridulis subter pallidioribus et glabris, nerviis primaris 
et secondariis hispido-scabridis ; stipulis brevibus triangulanbus bas 
semi-amplexicaulibus folia conjungentibus ; tot ramulis quot foliis 
nodos, terminantibus in spicis gracilibus ; floribus flavis sessilibus secun- 
dis, in alabastro confertis, in fructu 3-6 mm. distantibus ; sepalis linear! 
lanceolatis acuminatis 4 mm. longis 1 mm. latis cum duabus glandibus 
interioribus ; corollae tubo 8 mm. longo, laciniis oblongis acutis 3 mm 
longis, superiore paulo longiore ; capsulae basi persistente ; semuipus 
globosis punctatis. —San Luis Porost : Rascon, Dr. Hdwar d P sa 
19-22 June, 1905, no. 671 (type, in hb. Gray). This species 18 mos 
closely related to 8. Humboldtiana Cham. & Schlecht. and is easly 
distinguished by its much smaller flowers and its scabrid and more 
or less hispid pubescence. : 
Bourreria obovata, n. sp., ramulis senioribus minute wee 
tatis, junioribus canescentibus cum pilis brevibus adpressis; te 
obovatis superne scabridulis cum pilis brevibus adpressis bast ee 
pustulatis subter pallidioribus non scabridis, apice truncatis one 
utringue adpresso-pilosellis ; corolla rotata, tubo calycem sonee 
lobis 5-6 rotundatis, 5 mm, longis, basi auriculatis ; staminibus 9” 
