Botrychium silaifolium C.Presl

THE NEW YORK BOTANICAL GARDEN
HERBARIUM OF LUCIEN M. UNDERWOOD
PUR0HA8ED 1903
NEW YORK BOTANICAL GARDEN
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Examined For
*0RTH AMERICAN FlOk*v
“B. fronde radicali tripinnata, pinnis primariis secundariisque petiolatis, pinnulis |
subsessilibus ovatis crenato-denlatis, inferioribus sublobatis, scapo nudo, panicula coarc-
tata. Hab. Nootka-Sund.
“ Frons radicalis solitaria ambitu cordato-ovata, tripinnata, petiolo tripollicari rha-
chibusque sulcato. Pinnae primariae 5-pollicares oppositae petiolatae patentes ovatae
obtusae. Pinnae secundariae sesquibipollicares suboppositae petiolatae oblongo-lanceo-
latae. Pinnulae altemae et suboppositae ovatae obtusae glaberrimae carnulosae virides,
inferiores, 5—6 lineas longae subsessiles trilobae, mediae sessiles ovato-lanceolatae bilobae
| et profunde dentatae, supremae crenato-dentatae. Scapus pedalis sulcatus, fronde aequi-
•longus. Panicula secunda ramosa, ramis suboppositis ramosissimis, inferioribus ultra 3
I pollices longis.
‘‘Capsulae luteae magnitudinae sfeminis Milii. Semina flavo-viridia.”
Greville & Hooker in their Enumeratio Filicum * speak of I
| this as “ a very distinct species as appears from, the description,” f
I and this early opinion appears to be the correct one.
Through the kindness of Dr. Victor Schiffner of Prag, we'
have been able to see the original type from Presl’s herbarium and
it coincides exactly with the forms that are more or less common
in collections from California. Dr. M, A. Howe has collected
I very fine specimens at Sisson, near Mt. Shasta, in well shaded
I woods at an altitude of abcjut 3,500 feet. Other plants are in col-
i lections from farther south in the Sierras, and there is a specimen
? at Berlin, collected in the Cascade Mountains, Oregon, by Howell.
I Dr. Howe’s specimens were collected 31 July and are very ini-
| mature, the old leaf of the preceding season persisting, the young
lamina unfolding and the sporangia well-formed but still partly
i unfolded as is also the case with Presl’s plant which is only a lit-
tle farther advanced. The species has been fairly well figured in
outline in Eaton’s Ferns of North America as var. australe (Cali-
fornia form only ) but how it could have been possible to confuse
this noble species with the much smaller B. australe R. Br. from
I Australia is hard to understand !
HERB. LUCIEN M. UNDERWOOD.
Coll. L Ufu.
: 7. Botrychiùm siLAiFOLiUM Presi, Rei. Haenk. 1: 76. 1830.
B. ternatunty var. australe, D. C. Eaton, Ferns N. Am. 1 : pi.
20a. 1879 (in part). Not B. australe R. Br.
Presi described this species as follows :	',
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