376 MR. F. N. WILLTAMS: REVISION 
Sectio ii. LETOSPERM&. 
Subsectio 1.— Flores solitarii, terminales et axillares. 
64. A. muscoipEs, H. B. & K., Nov. Gen. et Spec. vi. p. 34, 
t. 26 (1823) ; Jacks. Ind. Kew, 1. p. 180. 
Hab. The Andes of Ecuador: summit of Mt. Antisana, at 
4600 metres. 
Iconogr.—. B. 4 K. l.c. 
If A. nana, Willd., were retained for the name of this species 
as Rohrbach suggests, a new name would have to be found for 
A. nana, Boiss., which would only cause confusion. Schlechtendal 
gave but a very meagre and unsatisfactory diagnosis of the 
plant in Willdenow's herbarium. 
65. A. MUSCIFORMIS, Triana & Planch. Prodr. Fl. Novo- Gran. 
in Ann. Sci. Nat. sér. IV. xvii. 1862, p. 150; Rohrb. in Linnea, 
xxxvii. (1871-72) p. 253. . 
Humilis, musciformis, Caules debiles, plus minus ramosi 
intricati glabri 4-sulcati, tantum 23-28 mm. alti. Folia parva 
approximata patentia neque unquam imbricata, Jineari-lanceolata 
acuminata ac fere mucronulata, nervo medio subtus valde 
prominente, nervis 2 lateralibus fere obsoletis, ciliata. Pedicelli 
longi graciles villosuli. Sepala ovato-oblonga acuminata, margine 
seariosa ciliata. Petala alba oblongo-spathulata, calycem paullum 
excedentia. Semina lentieularia. 
Differt hee species a precedenti, foliis non imbrieatis eorumque 
nervo mediano prominente ciliatis neque enerviis glabris, floribus 
longe pedicellatis nec sessilibus, petalis calyce longioribus. 
A. musciformis, Hook. f. in Fl. Brit. India, of Tibet, is a form 
of A. polytrichoides, and so becomes a synonym, apart from 
being homonymous with the South American plant. 
Hab. Republic of Colombia: prov. of Pasto, Plateau de 
Tuquerres, at 3400 metres. 
66. A. Hanacsyt, Bald. in Malpighia, v. p. 65 (1891). 
Ciespitosa, prostrata. Caudiculi tortuosi exiles plus minus lo 
glabri vel parce pilosi precipue juniores. Folia parvula in ramis 
sterilibus approximata, ovalia spathulata vel lanceolata carinato- 
uninervia, glandulosa vel sublevia, ad basin rigidula alata m 
petiolum attenuata. Rami 1-2-flori; pedicelli long! villos 
nunquam glandulosi. Sepala foliacea oblongo-lanceolata obtusa 
ngi, 
