圖1. ICN上面的黑爪E. cuspidata var. cuspidata.

重新在探討ICN上面黑爪Echeveria cuspidata的網頁,這幾年來似乎又有了一些變化,在var. cuspidata上面放的原生地照片,應該就是這幾年出現在市場的蒙恰卡。

圖2. 個人收藏的蒙恰卡,剛進來時的面貌。

圖3. 第二株蒙恰卡收藏品,這價位還有點高。

在ICN的var. cuspidata網頁上有這麼一段說明:

瓦虛爾Walther描述了兩種在同一個地點發現的兩個品種,其實它們應該是一樣的東西,也就是說E. parrasensis(帕拉斯)就是黑爪E. cuspidata, 帕拉斯的名稱應該是要完全的廢棄不用。

Note : The name "parrasensis" does not indicate a different clone of E. cuspidata. E. Walther has succeeded in describing two plants from the same locality with two different names ..... That means E. parrasensis is identical with E. cuspidata. The name "parrasensis" is entirely obsolete.

圖4. 這一品是由台灣一個農場播種,因而大量流通在市場上的黑爪(帕拉斯),種子的來源不知。

下面的資料來自於金那許在2005年的描述(老爹按:我不知道他發表在哪裡):
Stem  short, 5 – 7 cm usually, 10 – 15 mm thick.
Rosettes usually single, 10 – 15 cm wide.
Leaves  24 – 40, 3 – 7 cm long, 15 – 30 mm wide at widest part 1 – 2 cm below apex, 3 – 5 mm thick, obovate to obovate-cuneate, quickly narrowing within 2 cm from apex, mucronate-apiculate, glaucous, gray to bluish green, mucro or awn reddish, lacking a keel on upper surface.

上面的敘述中,葉片的上葉面缺乏龍骨,似乎和圖4的帕拉斯不太符合。

圖5. 黑爪的花序。
Inflorescences  single to several, usually branched, rarely bifurcate, 24 – 45 cm long, pinkish white to pinkish orange; bracts ascending, linear-lanceolate, 10 - 15 mm long; pedicels ascending, 15 – 25 mm long, pinkish.

圖6(a). 好不容易看到一花序,這植物能不能開花,還要看日照的程度夠不夠。

圖6(b). 花朵的特寫。

Flowers : Sepals unequal, nearly appressed to expanding, 1.5 – 10 mm long, pinkish to bluish grey,   corolla  urceolate, ca 12 mm long, 5 - 6 mm thick near base, 4 mm in diameter at narrowest part, petals   expanding slightly at apex, bright orange outside, paler inside.

圖7. ICN上面短葉黑爪var. zaragozae的照片。

在ICN網頁中,var. cuspidata的結尾部分還有這麼一段註解,var. cuspidata比起var. zaragozaevar. gemmula的形體要大些,但花朵幾乎都相同。

Echeveria cuspidata is a very variable species. Var. cuspidata is a much bigger plant than either var. zaragozae or var. gemmula. But the flowers of all clones are almost identical.

圖8. ICN上面var. zaragozae的花朵照片。

有關於短葉黑爪var. gemmula和長葉黑爪var. zaragozae的介紹部分,金那許有寫了一篇文章,做了一點區別,但目前的ICN網頁(我不知道作者是誰,公信力夠不夠)認為這兩品沒有區分的必要;相對的,由於var. cuspidata的植株較大型,葉片的形狀也不同,還有區分的必要(這點又會被推翻也不一定)。

he differences between E. cuspidata var. gemmula and E. cuspidata var. zaragozae are insignificant and do not justify two varieties. According to Etter & Kristen, the type localities of the two plants are only 100 m apart. It is sufficient to distinguish between E. cuspidata var. cuspidata which is a bigger plant with a distinct leaf shape and a smaller variety.

圖9. ICN上面的長葉黑爪var. gemmula.

下面引用的資料來自於ICN上面金那許在2005年對黑爪的描述,要從文字資料裡去比較兩者的不同,困難度有點高,再者,金氏使用的樣本數似乎也都不是很足夠!

金那許2005對長葉黑爪var. gemmula的描述:

Distribution : Mexico (Queretaro, Nuevo León)

Description (according to M. Kimnach, 2005) :
Stem  up to 6 cm and more,  2 – 2.5 cm thick.
Rosettes  usually single, 9 - 11 cm wide, 5 – 6 cm high.
Leaves  60 - 80, 30 – 40 mm long, 8 – 12 mm wide near apex, upcurving (erect when young, horizontal when old), oblanceolate, aristate, awn 2 – 4 mm long, reddened; bluish white waxy covering.
Inflorescences  2 - 4, 12 - 35 cm long, with 4 – 14 flowers per cincinnus, pinkish orange; bracts linear-lanceolate, 2 - 11 mm long, pinkish orange; pedicels 8 - 18 mm long.
Flowers : Sepals unequal, ascending, 1.2 – 5 mm long, glaucous, faintly purplish,  corolla urceolate, 9 - 11 mm long, 6 - 7 mm thick near base, petals expanding at apex, orange outside, yellowish inside.

金那許2005年對短葉黑爪var. zaragozai的描述:

Stem  1 – 4 cm high, 7 – 9 mm thick.
Rosettes  usually single, up to 10 cm wide and up to 6 cm high.
Leaves  30 – 70, erect when young, slightly deflexed when old, obovate or obovate-cuneate, with prominent purplish red mucro up to 2 mm long, upper side often with a paler coloured central keel, lower side strongly convex, up to 5 cm long and 1.6 cm wide, bluish green.
Inflorescences  1 – 3 with 1 (-2) unbranched cincinni, 11 – 23 cm long, pinkish orange, slightly glaucous;bracts linear-lanceolate, 2 – 8 x 1 – 4 mm; pedicels 8 – 18 mm long, pinkish orange.
Flowers : Sepals expanding slightly at apex, unequal, purplish orange, up to 3 mm long, corolla urceolate, 10 – 13 mm long, 6 – 8 mm thick near base, orange, petals expanding slightly at apex, pinkish yellow inside.

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