518 BLAKE. 
most nearly approaching it, including V. tenuis Gray and V. gracillima 
Brandegee, has the phyllaries 2-sub-3-seriate and distinctly more 
numerous, while the pappus is typical of that of Viguiera, consisting 
of two slender awns sharply differentiated from the four to six 
shorter squamellae. 
Vicurera adenophylla Blake, n. sp. Herbacea supra ramosa ramis 
erectis. Caulis purpureo-brunneus plus minusve glanduloso-puberu- 
lus sursum appresse pilosulus subflexuosus. Folia alterna late ovata 
acuminata basi cuneata vel abrupte truncata in petiolum cuneate 
angustata crenato-dentata (dentibus 17—21-jugis depresso-deltoideis 
mucronatis) apice acuminato. integro trinervia supra subappresse 
pilosula (pilis basi glandularibus vix tuberculatis) infra non pallidiora 
glandulosa pilosula 8.5-10.5 em. longa 4.6-7 em. lata. Petioli glandu- 
lari-pubescentes 1.8-2 em. longi. Capitula ca. 26 cymoso-paniculata 
2.8 em. lata. ‘Discus 8-13 mm. altus 7-10 mm. crassus. Involucri 
6 mm. alti biseriati subgradati squamae lanceolatae vel ovato-lanceo- 
latae acutae subherbaceae basi plus minusve induratae costatae in 
margine et plus minusve dorsaliter sordide albido-pilosiusculae et 
glandulosae. Radii 8 flavi ovales emarginati in venis dorsi pu eruli 
10-12 mm. longi 5.5-6 mm. lati. Corollae disci flavae subappresse 
pilosulae 6 mm. longae (tubo 1.3 mm.) faucibus campanulato-infundi- 
buliformibus. Paleae oblongae mucronatae acutae margine flavidae 
apice eroso-denticulatae dorso sordide pilosiusculae parce glandulosae 
8-9 mm. longae. Achaenia (immatura) sericea. Aristae 2 paleaceae 
oblongo-lanceolatae acutae vel obtusae fimbriatae inaequales 2.8- 
3.5 mm. longae; squamellae 4 longiores liberae oblongae lacerato- 
fimbriatae ca. 1.2 mm. longae et ca. 4 parvae intermediae laceratae.— 
San Luis Potost: alt. 1830-2440 m., 1878, Parry & Palmer 467 
(rypEe cout.: Brit. Mus., Gray Herb., Kew).— Not closely related 
to any other species. : 
Vicuiera angustifolia (H. & A.) Blake, n. comb.— Tithona 
pachycephala H. & A. ! Bot. Beech. Voy. 299 (1840), not DC. (err. 
iden.). 1’. angustifolia H. & A. !1. ¢. 435 (1841). Viguiera blepharo- 
lepis Gray! Proc. Am. Acad. xix. 5 (1883).— The type of Tithonia 
angustifolia H. & A. (Tepic, Sinclair, hb. Kew.) is identical with 
Seemann 1481, from Cerro de Pinal, type collection of V. blepharo- 
lepis, and not at all the same as V. buddleiaeformis (DC.) B. & H. f., 
although considered by Bentham (B. & H. f. Gen. ii. 375 (1873)) to 
be identical with the latter species. The only previous Vigueer 
angustifolia, that of Glaziou, Mém. Soc. Bot. France, iii. 412 (1910), 
is merely a nomen nudum, 
