COMPOSITAE NEW AND TRANSFERRED. 523 
(TYPE coLL.: British Museum).— Most nearly related among de- 
scribed species to P. verbesinoides DC., but distinct in its longer 
looser phyllaries, fewer longer-peduncled heads, and in its distinctly 
paler leaves, which are much less reticulate beneath. 
PERYMENIUM hypoleucum Blake, n. sp. Frutex ramosus. Cau- 
lis strigillosus cortice griseo-brunneo tectus aetate subglabratus; rami 
sub-6-angulares subdense strigillosi purpureo-brunnei. Folia oppo- 
sita (paucis superioribus interdum alternis exceptis) ovata vel elliptico- 
ovata obtusa vel acuta basi cuneato-rotundata serrata (dentibus 
5-7-jugis late triangularibus subpatentibus vel appressis) pinnati- 
nervia (venis supra impressis subtus reticulatis majoribus 3—4-jugis 
imis validioribus) supra viridia dense strigosa pilis basi tuberculatis 
subtus cum pilis densissimis appressis brevibus canescentia et sub- 
aspera 2-3 cm. longa 1.1-1.9 cm. lata. Petioli strigosi immarginati 
1.5-2 mm. longi. Capitula 1 cm. lata ad apices ramorum 4-10 dense 
cymoso-paniculata in pedunculis dense strigosis 3-8 mm. longis 
disposita. Discus 6-8 mm. altus 5-7 mm. crassus. Involucri 4- 
seriati gradati 4 mm. alti squamae solummodo apice herbaceae infra 
induratae pallidae dense strigillosae obtusae vel rotundatae extimae 
elliptico-ovatae interiores deltoideo-ovatae vel late ovales intimae 
3-nerviae. Radii fertiles ad 7 ovales aurei 2-3-denticulati in venis 
dorso hirtelli 3.5 mm. longi 2 mm. lati. Corollae disci flavae in 
dentibus et interdum tubo hirtellae 3.5 mm. longae (tubo 1 mm.). 
Paleae in carina infra glandulosae supra subspinulosae in margine 
denticulato-spinulosae apice abrupte acutae 3.7 mm. longae. Achaenia 
(immaturissima) in angulis hispidula. Pappi aristae ca. 8 caducae 
spinulosae subaequales (una duabusve duplo longioribus exceptis).— 
EBLA: vicinity of San Luis Tultitlanapa, near Oaxaca, 9 July 1908, 
Purpus 3087 (type cout.: British Museum).— Distributed as P. rude 
Rob. & Greenm., from which it is very distinct. More closely related 
to P. croceum Rob. & Greenm. and P. angustifolium Brandegee, but 
quite distinct from both. 
PreRYMENIUM leptopodum Blake, n.sp. Frutexramosus. Caulis 
tenuis quadrangularis minute strigillosus cortice brunneo vel pur- 
pureo-brunneo tectus. Folia opposita ovato-lanceolata acuminata 
basi cuneata trinervia appresse serrata (dentibus 8-10-jugis) supra 
obscure viridia minute strigilloso-scabra subtus non pallidiora glandu- 
loso-adspersa venas et venulas secundum strigillosa 4.6-6.3 cm. 
longa 1.5-2.3 cm. lata. Petioli vix marginati tenues 9-16 mm. longi. 
Capitula 1.6 em. lata in apicibus ramorum et ramulorum ternatim vel 
quinatim cymoso-paniculata, Pedicelli 5-19 mm. longi strigillosi. 
