Rumble Among the Jungle, Matches 1.53-1.56

Rules and Stuff
1) It's probably possible to vote more than once per poll, but please don't. If I believe that someone is voting repeatedly, I will throw out those results, repost the poll, and seriously question that person's priorities.
2) If you want to link to a poll on Twitter / Facebook / your blog / whatever and encourage your friends to come and pump up the support for your favorite plants, you are encouraged to do so.
3) You are also encouraged to leave comments on Rumble posts, if so moved.
4) All photos will enlarge if opened in a separate window/tab.
5) You can choose which plant is "best" according to whatever criteria you decide for yourself. My personal process is a bit convoluted.¹
6) All polls will be open for three days.

And now, the results from matches 1.37 to 1.40:

Even with the obvious handicap of having glued-on flowers, Cereus tetragonus² came very close to winning match 1.37. It didn't, losing to Pilea involucrata 'Norfolk' by a handful of votes (55 to 48), but it came really close.
Chlorophytum comosum, despite some protests, pretty easily beat Echinocactus grusonii in match 1.38, 64 to 40.

Pilea involucrata 'Norfolk' faces Chlorophytum comosum in match 2.19, which will begin October 11.

Match 1.39 was pretty close, but Kalanchoe luciae & thyrsiflora managed a win over Peperomia clusiifolia, 56 to 42.
Finally, match 1.40 was very one-sided: Echeveria cvv. stomped Nephrolepis exaltata by 87 to 20.

Kalanchoe luciae/thyrsiflora goes up against Echeveria cvv. on October 11, in match 2.20.

And now, today's new polls:

Match 1.53
Cycas revoluta (sago palm) vs. Espostoa lanata, Oreocereus trollii, & Cephalocereus senilis (old man cactus)

(Top: older Cycas revoluta. Bottom: young C. revoluta.)

(Espostoa lanata CORRECTION 1/13/14: this is actually Oreocereus trollii)





Match 1.54
Tradescantia zebrina (wandering jew) vs. Portulacaria afra (elephant bush)

(All are unidentified cvv. of Tradescantia zebrina.)

Left and center: Portulacaria afra. Right: variegated cv.





Match 1.55
Tillandsia cyanea (pink quill) vs. Kalanchoe blossfeldiana (flaming katy, kalanchoe)

(Tillandsia cyanea.)

(All are NOID Kalanchoe blossfeldiana cvv.)





Match 1.56
Self-heading Philodendrons ('Autumn,' 'Prince of Orange,' 'Moonlight') vs. Davallia and other furry-rhizomed ferns like Polypodium/Phlebodium (rabbit's-foot fern, hare's-foot fern, bear's-paw fern, kangaroo fern)

Clockwise from top left: Philodendron 'Prince of Orange,' 'Moonlight,' 'Autumn,' 'Prince of Orange,' 'Moonlight.'

Clockwise from left: Phlebodium aureum 'Mandianum,' close-up of Davallia rhizomes, Davallia fejeensis 'Major.'





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¹ I'm deciding according to a hypothetical situation in which all of my houseplants are gone, as are all the other houseplants of the world, except for one producer/supplier/retailer. Said person is offering to restock me with one or the other of the plants in question but refuses to give me both. Which one would I choose?
² (Or whatever it is: it's identified as at least three different species and I'm not enough of a cactus expert to make a judgment. Calling it C. tetragonus follows the usage of CactiGuide.com.)