EASTWOOD. — MEXICAN SPECIES OF CASTILLEJA. 569 



reeurvatis ; capsula elliptica acuta compressa 8 mm. longa. — Proc. 

 Am. Acad. xxvi. 173(1891). — State of Mexico : grassy slopes, Flor 

 de Maria, 28 July, 1890, C. G. Pringle, no. 3194 (type, in hb. Gray), 

 also from same locality, altitude 2440 m., no. 9429. To this species, 

 at the time of its original description, was doubtfully referred a speci- 

 men collected in Chihuahua by C. G. Pringle, no. 1545, which is below 

 made the type of C. pediaca. In hb. U. S. Nat. Mus. sheet no. 396,150 

 contains a specimen of C. macrostigma collected at the type locality 

 by Rose & Hay, no. 6330, together with a specimen of C. Schaffneri. 



5. O. pediaca, n. sp., annua albo-pilosa et glandulare puberulens ; 

 caulibus prope basim recte ramosis, 2 dm. altis; foliis tenuibus lanceolato- 

 acuminatis integris 3-5-nerviis, 2-3 cm. longis 1-2 mm. latis, basi 

 amplexicaulibus 5-10 mm. latis ; floribus sessilibus interruptis acclini- 

 bus ad axim spicae gracilis ; bracteis flores subaequantibus et investi- 

 entibus, spatulatis 10-12 mm. longis, superiore parte flavo densissime 

 glandulare puberulenti, apice truncato vel obtuso, inferiore parte pilosa 

 nervia; calyce membranacea 12 mm. longo, fisso 6 mm., duobus partibus 

 truncatis vel emarginatis 5 mm. latis ; corolla recta 18 mm. longa, galea 

 acuminata apice glandulare pilosa, labio inferiore membranaceo non 

 protuberanti, laciniis linearibus obtusis glandulare ciliatis 1.5 mm.longis, 

 sinubus inter laciniis 1 mm. latis ; stigmate bilobo crasso, fere exserto ; 

 ovario subcylindrico ; capsula compressa oblonga 8 mm. longa 3 mm. 

 diametro, apice acuminata ; seminibus rhomboideis 1 mm. diametro, 

 testa membranacea profunde foveolata. — Chihuahua : plains, base of 

 the Sierra Madre, 27 September, 1887, C. G. Pringle, no. 1545 (type, in 

 hb. Gray), distributed as C. lithospermoides, var. (?) flava Watson ; 

 also included under C. macrostigma Robinson in Proc. Amer. Acad, 

 xxvi. 173 (1891). From this latter species it differs in having a more 

 closely flowered spike, pilose instead of puberulent indumentum and less 

 exserted stigma. The flowers too are dissimilar, but the differences are 

 not so obvious. It is even further removed from C. lithospermoides, being 

 a slender- stemmed annual, while that is a robust perennial with some- 

 what harsh pubescence. The slender spikes of C. pediaca have flowers 

 about 1 cm. apart, somewhat distichous and appressed to an axis that 

 is slightly tortuous, and are quite unlike the showy thickly flowered 

 spikes of C. lithospermoides. 



6. C- sphaerostigma, n. sp., caulibus 1-2 simplicihus 1.5-2.5 dm. 

 altis gracilibus adpressi-pubescentibus ; foliis integris vel pinnatisectis 

 1-3-nerviis puberulenti-subscabridis, basi amplexicaulibus, apice obtusis, 

 margine frequente involutis, laciniis 2-6 anguste linearibus ; floribus 

 in spicis elongantibus sessilibus, bracteis galeam fere aequantibus vel 

 (sub floribus primis) earn superantibus simplicibus cum margine undulata 



