Tacinga funalis sp nov

At first erect, then climbing over shrubs or through trees, 1 to 12 meters long, somewhat branching; old stems woody, slender; branches usually reddish, the areoles borne on low ribs; glochids short; flower, including ovary, 7 to 8 cm. long; sepals about 10, short, ovate, acute, 5 to 15 mm. long; petals about 7, green, 4 cm. long, acute, revolute; stamens erect, connivent, not sensitive; anthers narrow, elongated; style elongated, thread-like, most slender below, a little longer than the stamens, 4.5 cm. long, cream-colored; stigma-lobes 5, green; fruit 4 to 5 cm. long; seeds 3 to 4 mm. broad.

* Catinga or caatinga is the common Brazilian name for the thorn-bush desert region in Bahia, Brazil. Dr Albert Lofgren says that the name (best spelled caatinga) is of Indian origin, meaning can = wood, forest; tinga = white, clear; a forest in which one can see far.

Fig. 49.—Tacinga funalis. Showing how it climbs over bushes.

Common in the dry parts of Bahia, Brazil, where it was collected by Rose and Russell in 1915 (No. 19723, type). Dr. Zehntner thinks there may be a second species, as he has found one with purple flowers; specimens from southern Bahia had purple buds, but the open flowers were not seen. The type comes from Joazeiro, northern Bahia.

Dr. Rose studied this species in the field and believed it to be new. On reaching Rio de Janeiro, he found that Dr. A. Lofgren had also studied it, referring it, however, to Opuntia, using the above specific name.

Figures 45 and 46 are copied from drawings of the flowers given to Dr. Rose by Dr. Lofgren; figures 47 and 48 are from twigs of the plant grown at the New York Botanical Garden; figure 49 is from a photograph of the type plant.

5. MAIHUENIA Philippi, Gartenflora 32: 260. 1883.

Plants low, cespitose, often forming small, dense mounds; stems jointed; joints small, globular or short-cylindric; leaves small, usually terete, persistent; leaves of seedlings terete, ascending, with 2 long white bristles in the axils; areoles filled with white wool; spines 3, the central one elongated, the 2 lateral ones small and very short; glochids wanting; flowers large for the size of the plant, yellow or red, usually terminal; petals distinct; flower-tube none; stamens and style much shorter than the petals; fruit juicy (described as dry in one species), oblong to obovoid, bearing small scattered, ovate, persistent leaves; wall of fruit thin; cotyledons linear; seed black, shining, with a brittle testa.

Fig. 50.—Maihuenia valentinii.

Type species: Opuntia poeppigii Otto.

There are five species described, rather closely related, natives of the high mountains of Chile and Argentina.

The generic name is derived from maihuen, the native name of the plant.

This is a .small, localized genus; it is perhaps nearest Opuntia, but is without glochids and has different seeds. The first species was described in 1837, and a second in 1864, both as Opuntia. Weber in 1898 transferred them to Pereskia, proposing a new subgenus for them, but they are much less like Pereskia than Opuntia, for, except as to the seeds, they have little in common with Pereskia; in habit, leaves, spines, flowers, and fruits they are quite unlike any of the pereskias.

oeppigii. X0.75. irachydelphys. X0.75.

oeppigii. X0.75. irachydelphys. X0.75.

Continue reading here: Key to Species

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