470 PLAGIOCHILA. 
13. PLAGIOCHILA MACRIFOLIA, Tayl. in hb. Jameson. 
G. L. et N. Sp. Hep. 634. 
Hab. Andes Quitenses in montis Chimborazo descensu occidentali, in sylvis 
excelsis ad arborum ramulos, alt. 1200™™, 
F 25x1-0, 2°75 x 1:1: ¢ sy—-sy 3 per 4:0 x 1:25, 45 x 1:0™™. 
Caudex repens ramosus foliosus vel denudatus. Caules 2-3-pollicares, 
tenues erecti, vage divisi dichotomive, angulo furcee acuto; vel superne 
ramulos 3-6 fasciculatos apice floriferos edentes, vel denique laxe 
pinnati, ramis elongatis interdum ramulosis. 
Folia fulva fuscave, plus minus dissita, recurvo-patula-secundave, semi- 
ovato-lanceolata obtusa vel acuta, margine antico recurvo longiuscule 
decurrente apicem versus, postico toto fere apiceque spinoso-dentata, 
dentibus 9-13 breviusculis; cellulee mediocres, inferiores oblongate, 
superiores subeequilateree.—F. ramea angustiora subligulata. 
Flores 9 terminales innovate. Bractez propriz null. 
Perianthia flava prelonga, 3-5plo longiora quam lata, basi nuda, clavata 
vel anguste pyriformia, inferne tetragona, superne compresso-plana, 
exalata, ore subconstricto rotundato spinoso-ciliata. Capsula oblonga, 
in pedicello perianthium duplo excedente. 
Obs. In hae specie frequenter adveniunt ramuli epiphylli foliis minutis 
bicuspidatis ceeterum integerrimis vestiti. 
Var. angustifolia S. Folia 4plo fere longiora quam lata (3°25 x °75™™), 
lanceolato-ligulata, e marginibus basi recurvis cuneata, apice, margine 
postico supra medium et antico apicem versus spinoso-dentata. 
Var. Taylori S. Rami e foliis longe dissitis fragilibusque sepe primo 
visu subnudi. Folia linearia vel lanceolato-linearia, e marginibus 
basi recurvis cuneata, apice spinoso-bidentata, caeterum integerrima 
rariusve denticulo uno alterove postico armata. 
Habitant varietates cum forma perfectiore in eodem monte Chimborazo. 
Var. Taylori (= Pl. macrifolia Tayl. in London Journ. of Bot. 1846, 
p. 270; G. L. et N. Syn. Hep. p. 634) etiam in monte Pichincha a cl. 
JAMESON, in sylva Llalla montis Azuay, alt. 2700", ab auctore in- 
venta est. 
Obs. Extreme forms of this might easily be taken for distinct species, 
but all limits break down on comparison of a large series of specimens. 
The ligulate branch-leaves of the first form are much narrower than the 
stem-leaves, but are quite like the stem-leaves of the second form. Only 
the third form—with narrow, almost linear leaves, entire except for 2 or 
3 sharp teeth at the summit—was known to Taylor, and only in the 
barren state. All the forms are notable for the long clavate perianths, 
standing out beyond the leaves, ze. destitute of any involucre; as in Pl. 
gymnocalycina and a few other allied species. 
14. PLAGIOCHILA AEREA, Tayl. 
» Lay 
Lond. Journ. Bot. (1846); Gottsche Mex. Leverm. 45, t. 10. 
Hab. Andes Quitenses, in M. Chimborazo, ad ramulos (R. 8.). Prope 
Quito (JAMESON). Mexico (LIEBMAN)). 
F 2:0x1°0, 2:0 x ‘75, 2:0 x 45; ¢ ay—py 5 per 25x 1:0™™. 
Caules 3-pollicares tenuissimi, prostrati, intricati, monotrope semel, bis 
terve innovandi, rarissime dichotomi. 
