A big apology Tom! I didn't actually refer to my notes before
sending this Aroid l post and later learned the "boat shaped" mention
was not from your field notes! Instead it came from Anna Haigh's
translation of Kurt Krause' published synopsis from 1913 which can be
found on CATE Araceae. The description from
Krause appears very different than the plate you sent. I've copied it
here:
Philodendron
crassinervium Lindl. sec CATE Araceae, 2009
Stem repent and scandent, internodes 5-10 cm long, 1.5-2 cm thick. LEAVES: Petiole
semiterete, 10-13 cm long, 5-8 mm thick, sheathed at the base for 2-3
cm; Blade linear-oblong, or lanceolate-oblong, apex cuspidate-acuminate
for almost 1 cm, narrowly cuneate towards the base, 3-4.5 cm, rarely
longer, 6-10 cm wide; midrib swollen, ca. 1 cm wide at the base,
strongly attenuating towards the apex; lateral veins slender,
subparallel, spreading, ascending and joining near the margin. INFLORESCENCES: Peduncle
slender, 10-15 cm long, 3-4 mm thick. Spathe boat-shaped, apex shortly
apiculate, tube 3-4 cm long, externally green, internally at the base
light purple, green-coloured towards the spathe-blade; blade shortly
stipitate; female zone 5-6 cm long, 1 cm thick. Pistils ovoid, ca. 2 mm
long, 4-6-locular, locules many-ovulate. Male flowers usually
triandrous. Berries turbinate [obconical], 4-5 mm long, 2 mm thick,
white, stigma brown with 4-6 small lobes. Seeds oblong, pale.
Krause,
K. 1913. Araceae-Philodendroideae-Philodendreae-Philodendrinae. Das
Pflanzenreich. 60 (IV.23Db): 1-143 p. 22, translated by A. Haigh.
I've added an explanation to the page:
http://www.exoticrainforest.com/Philodendron%20crassinervium%20Philodendron%20lanceolatum.pc.html
Steve
Thanks a bunch Tom. I received the
scan last night and will add it to the page.
The thing I find very interesting is Schott's illustration doesn't
appear to match some of your field notes on TROPICOS. Mauro Piexoto of
Brazil Plants allowed me to use one of his photos of two inflorescences
of P. crassinervium which are "boat shaped" as your notes
state they should be. Could this indicate that Schott actually
described something that no longer exists or possibly either of the
plants we know as Philodendron lanceolatum or Philodendron
alternans? As I told you privately neither Marcus Nadruz nor
Eduardo Gonçalves appear to believe P. alternans should be
considered a synonym.
There seems to always be more to learn.
Steve
Tom Croat wrote:
Dear Steve:
We could scan Schott’s
painting of the inflorescences if you would like it.
Tom
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