Hoya cembra Kloppenburg 1990
Type description:
In Hoya Society-West Coast 2 (1990) sect. 2:2. Hoya cembra Kloppenburg sp. nov.
Type sheet #5650 Elmer D. Merrill found in thickets along the Alag river, Mindoro, Philippines, at 300 m altitude Nov. 1906. Berlin (B) Holotypus. This is Schlechter's unpublished Hoya leucantha. ex. spec.
epiphytica scandens vel tereste, pauciramosa, glabra, bene foliatus; flexuosis; foliis erecto-patentibus breviter petiolaris, anguste ellipticus apexis rostratis glabris, lucidis, textura tenuiter coriaceis, 8-10 cm. longis, infra medium 2-3 cm. latis; petiolus 0.5 cm. longis; floribus in umbellis paucifloris albus; pedicellis filiformibus, teretibus, glabris 2.5 cm. longis; calycis segmentis lanceolato-oblongis obtusis, extus ciliatis, ligulae praesentia; corolla rotata circ. 1.8 cm. diametiente, triangularis acutis, extus glabra, intus pubescens; coronae faliotis carnose horizontalibus, ovatus, segmenta interiore contiguous, anguste productus, subtus sulcatis, apice posteriore obtussima, superne haud recurvato, prosus umbo, antheris paululo brevioribus.
This species is near H. odorata Schlechter but differs in its narrowly elliptic foliage, 8-10 cm. vs. 3.5-5 cm., the outer surface of its sepals, which are ciliate, its pubescent inner corolla surface especially its outer lobes which are glabrous in H. odorata Schlechter, its distinctive channeling of the lower surface of the corona lobes, the blocky outer corona lobe with a umbo on the upper side near the inner lobe rather than an ornate longitudinal hump as in H. odorata. Its channeling, sepals, corolla and corona differ from #5618.
This Hoya species is named for my daughter. Her name is derived from a picturesque pine species of the Central European Alps, the Swiss Stone Pine.
Translation: Climbing or terrestrial, few stems, glabrous, well leaved; flexible; leaves erect- spreading briefly petiolate, narrow elliptical beaked, glabrous, shinny, somewhat leathery, 8 - 10 cm. long, below the middle 2 - 3 cm. wide, petioles 0.5 cm. long; few white flowers in umbels; pedicels threadlike, round, glabrous 2.5 cm. long; calyx segments lanceolate-oblong, obtuse, outer ciliate, ligule present; corolla rotate about 1.8 cm. in diameter, triangular, acute. outside glabrous, inside pubescent; leaflets of the corona fleshy horizontal, ovate interior segments touching, narrow, below sulcate, outer tip obtuse, overtopping not at all recurved, an umbo forward, anthers a little shorter.
Other literature:
In Asklepios 52 (1991) 101. Paul I Forster. Hoya cembra Kloppenburg, Fraterna 1990(3), Supp. II (1990). Type The Philippines. Alag River, Mindoro, November 1906, E. D. Merrill 5650 (holo: B). Notes: This species is based on Schlechter’s unpublished H. leucantha. Isotype material could be expected to be in US.
In Dr. Schlechter’s Hoya Species (1993) 46-47. R. D. Kloppenburg. Hoya cembra Kloppenburg.
Hoya leucantha Schlechter (unpublished).
Epiphytic climber or terrestrial, little branched, glabrous, well leaved; flexible; leaves erect outspread briefly petiolate, narrowly elliptic with pointed apex, glabrous, lucid, texture thinly leathery, 8-10 cm. long, below the middle 2-3 cm. wide, petiole 0.5 cm. long; few white flowers in umbels; pedicels threadlike, round, glabrous, 2.5 cm. long; with the segments of the calyx lanceolate-oblong obtuse, outside ciliate, with ligules present; corolla rotate about 1.8 cm. in diameter, triangular acute, outside glabrous, inside pubescent, with scales of the corona fleshy, horizontal, ovate, interior segments touching, narrow, below channeled, outer apex obtuse, above definitely recurved, with definite umbo, anthers a little shorter.
This species is near H. odorata Schlechter but differs in its narrow elliptic foliage, 8-10 cm. vs. 3,5-5 cm long. The outer surface of its sepals, which are pubescent, its pubescent inner corolla surface, especially its outer lobes which are glabrous in H. odorata Schlechter, its distinctive channeling of the lower surface of the corona lobes, the blocky outer corona lobe with an umbo on the upper surface near the inner lobe rather than an ornate longitudinal hump as in H. odorata Schltr. Its channeling, sepals, corolla and corona differ from #5618 (B).
Published by Dale Kloppenburg in: 1990 Fraterna, publication of the International Hoya Association, third Quarter.
In Philippine Hoya Species 3rd Edition (1996) 51-52. R. D. Kloppenburg. Hoya cembra Kloppenburg in Fraterna 1 #1 Fall 1990. Type #5650 of Elmer D. Merrill collected in thickets along the Alag river, Mindoro at 300 m. altitude, Nov. 1906 (B).
Key #4
An epiphytic scandent and terrestrial plant, more bush than vine, sparingly branched and then more often from the basal region, glabrous, branches flexible but rigid, stems fairly large to 0.5 cm. in diameter, smaller terminally. Foliage erect outspreading, fairly thick with internodes about 4 cm. long. Leaves larger than in H. odorata, a related species, more narrowly elliptic, glabrous, 8-10 cm. long x 2-3 cm. wide along the middle section. Tapering at both ends, apex rostrate, narrow and pointed, with short petioles about 0.5 cm. long, grooved, glabrous. Pedicels filiform, terete, glabrous, arising from nodal areas, few or solitary 2.5 cm. long. Calyx segments lanceolate-oblong obtuse, pubescent outside, glabrous within, with ligules present. Corolla white rotate about 1.8 cm. in diameter, triangular acute lobes, outside glabrous, inside all pubescent, apex obtuse. Corona horizontal, inner lobe of scale stretched out narrowly and long acuminate, sculptured below with an umbo on the upper surface, outer apex blunt and rounded, sulcate about 2/3 on outer end of outer lobe and below. Anther appendages slightly exceed the scale inner lobe. Pollinaria with wide rather squat pollinia, winged with fairly long translators, retinaculum rather broad, bifid at the outer apex.
Meaning: cembra — Cembra Kloppenburg, the daughter of Dale Kloppenberg.
Hoya cembra Kloppenburg (H. leucantha Schlechter), 1990, # 5650 (B)
Hoya cembra Kloppenburg (H. leucantha Schlechter), Type 5650 (US)
