HOYA NEW

Places where hoyas grow, Sumatra

A pdf publication devoted to the Genus

Hoya ISSN 2329-7336

Editor:

Dale Kloppenburg

Volume I Issue 4

December 2013

1

Contents

This first issue will be devoted to the publication of some new hoya
species from the Philippines. I have accumulated a backlog of unpublished
species and feel it necessary to publish these species namely in the name of
conservation. When a species is collected from the wild, I feel it is wise to
identify it, propagate it and name it. In this way it will eventually get it into
commercial channels, be distributed to all those interested in this genus and
thus be preserved. If in the future the species is lost through natural causes or
forest destruction it will still be here on earth in your collection.

The following new species are presented in PDF format with ISSN
number.

1. Hoya bebsguevarrae Kloppenburg & Carandang

2. Hoya celsa Kloppenburg, Siar, Guevarra, Cajano & Carandang

3. Hoya chiekoae Kloppenburg, Ferreras & Mendoza

4. Hoya unruhiana Kloppenburg, Siar, Mendoza, Cajano &

Carandang

5. Hoya williamsiana Kloppenburg, Siar, Mendoza, Cajano,

Guevarra & Carandang

6. Hoya coriacea subsp. philippinensis Kloppenburg, Siar &

Ferreras

7. Hoya myrmecopa subsp. kanaloensis Kloppenburg, Siar,

Cajano, Guevarra & Carandang

8. Hoya pseudoleytensis Kloppenburg, Mendoza, Guevarra &

Carandang

NOTE: please see the Website publication of these species at ^‘www.rare-
hoyas.com”. Go to end and click on “publication” to access new species
publications.

2

Hoya bebsguevarrae Kloppenburg & Carandang

ISSN # 2329-7336

Hoya bebsguevarrae Kloppenburg & Carandang sp. nova holotypus
71846 (CAHUP) hie designatus. Epiph^tica, volubilis, scandens, ramosa; caule ramisque
filiformibus elongatis, flexuosis, teretibus, glabris, laxe foliatis; foliis; ellipticis vel ovato-
ellipticis acuminatis, glabris, textura crasse coriaceis, plinervis conspicuis, 7.8-14.1 cm
longis, medio vel infra medium 3. 2-5.0 cm latis, petiolo brevi carnoso; cyiiiis
Umbelliformibus multifloris, rhachis demum cylindrica elongata, pedicellis filiformibus
gracilibus, glabris, 2.0 cm longis; calycis segmentis triangularis obtusis glabris, 0.15 cm
longis; corolla usque infra medium 5-fida rotata, extus glabra, intus minutissime et
aequaliter puberulosa, circ. 1.44 cm diametiente complinatus, lobis late ovatis, acutis,
cire. 0.34 cm longis; coronae foliolis subhorizontal ibus, interior apice dentatus, dorso
concavus, supeme usque infra, apicem logitudinaliter carinatis, subtus canaliculatus.
Species similes in aliquot respectus ad Hoya benvergarae Kloppenburg & Siar 2008,
pollinia 0.35 mm longus, translatorus typus p/o et alae antherarum apiculatus quadratus,
sed differt aliter.

A twining epiphyte, climbing branched, stalks and branches threadlike elongate,
flexible round and glabrous; loosely leaved, with the leaves elliptical or ovate elliptical,
acuminate, glabrous, with thick coriaceous texture, plinerved which are very
conspicuous, 7.8 - 14.1 cm long in the middle 3.2 - 5.0 cm wide, petiole short and
fleshy, the cymes shaped like umbels of many flowers, with the rachis at last cylindrical,
elongate, the pedicels threadlike slender, glabrous, 2.0 cm long; the segments of the
calyx are triangular obtuse, glabrous, 0.15 cm long; corolla 5 lobed all the way to below
the middle, rotate, outside glabrous, inside evenly puberulous, about 1.44 cm in diameter
flattened, lobes broadly ovate, acute, about 0.34 cm long; with the corona scales
somewhat horizontal, inner apex dentate, with the dorsal concave, above longitudinally
keeled all the way from back of the tip and channeled below.

This new hoya species is named for Maria Luisa D. Guevarra, she is the lady who
took over the projects of the late Dr. Monina Siar and now a part of the Hoya Group. Her
training is in plant breeding with a basic knowledge of botany/taxonomy. She is a
University Researcher, at the Fruit and Ornamental Crops Section, Crop Science Cluster.
Institute of Plant Breeding, College of Agriculture, University' of the Philippines in Los
Banos (UPLB), Laguna, Philippines. She has been exceedingly helpful in sending me
new hoya materials along with supporting data and photos. She is known as Bebs.

3

Pedicel: section enlarged ca. 56x. Glabrous, strict,
terete, 2.0 cm long x 0.07 cm in diameter.

Calyx: outside

surface enlarged ca.
22x. Surface is
granulate, thickened
centrally, pedicel not
expanded at base.
0.15 cm long x 0.10
cm. widest, apex sub-
acute.

Calyx inside view
enlarged as above.
Inner surface is slick
and glabrous, base
with very small
ligules, overlap % at
base, outer apex
narrowly obtuse.

Ovaries: Columnar, glabrous, 0.12 cm tall and base pair 0.10 cm wide.

Corolla: ventral surface enlarged ca. lOx.
Surface is glabrous, lobe apices are acute, and
the center thickened.

Sinus - sinus

0.40 cm

Sinus - center

0.33 cm

Sinus - apex

0.50 cm

Apex - center

0.72 cm

Widest

0.47 cm

Corolla dorsal surface enlarged as above.
Surface is evenly puberulous.

4

Corona: ventral surface enlarged ca. lOx. Surfaces
are glabrous, lobes are channeled evenly to near the
central column, lobe apices are acute, anther wings
apices protrude and with squared off ends, column area
appears to be glabrous.

Corona dorsal surface enlarged ca. 9x, horizontal
position.

Apex - apex

0.33 cm

Apex - center

0.38 cm

Widest

0.17 cm

Ret. - ret.

0.11 cm

Ret. - center

0.10 cm

Aw. - aw.

0.21 cm

Aw. - aw.

0.19 cm

Inner lobe is dentate, dorsal is concave with forward umbo and keel to acute outer
apex, edges are rounded, retinacula and anther wings plainly visible.

Coronal scale ventral surface enlarged ca. 20x.
Lobe is channeled evenly to near the center sides rolled
under diagonally sulcate, apex acute. Anther wing is
deeply scythe shaped (showing above right).

Coronal lobe dorsal view enlarged as above. Inner
apex does not reach the center is dentate, dorsal in
concave with forward umbo, rounded keel extends down
enter to outer apes, edges are rounded, outer apex acute,
surfaces glabrous.

Coronal lobe side view enlarged as above, scale is
horizontal, relatively thin, glabrous with deep scythe
shaped anther wing. Anthers above inner apex of corona.

5

Pollinarium

enlarged

lOOx.

ea.

Pollinium

length 0.35 mm

widest 0.12 mm

Retinaculum

length

0.10 mm

shoulder

0.08 mm

waist

0.06 mm

hip

0.07 mm

ext.

0.05 mm

Translator

length

0.08 mm

depth

0.02 mm

Caudicle

bulb diam.

0.05 mm

Translator type: p/o

6

2012-4-031

Date of Collection: February 29, 2012
Place of Collection: Real, Quezon
Collectors: MLD Guevarra & JM Carandang

2012-4-031

Leaf

Length

Width

Thickness

sample

(cm)

(cm)

(cm)

1

12.6

5.0

0.170

2

10.6

4.5

0.210

3

9.9

3.2

0.235

4

9.9

4.7

0.190

5

10.2

4.7

0.190

6

8.4

3.8

0.285

7

14.1

4.9

0.205

8

11.0

4.5

0.185

9

10.1

4.7

0.150

10

7.8

3.8

0.130

Mean

10.46

4.38

0.195

Range

7.8 -14.1

3.2 -5.0

0.130

-2.85

20-flowers

10 flowers

7

Leaves are petiolate,
opposite ovate-elliptie,
base obtuse to sub-
eordate apex short
aeute, nerves plinerved,
anastomosing with
nerve angle to the
midrib ea. 18° or less
and lighter eolored than
the leaf surfaee, dorsal
eonvex, edges entire.

References:

1. Kloppenburg R.D. 2012. Hoya bicolensis,

2. Kloppenburg R.D. Hoya bicolor in Fraterna V.16 #1 2003:1-4.

Contributors:

Jennelyn M. Carandang University Researeh Assoeiate, Crop Seienee Cluster- Institute of
Plant Breeding, College of Agrieulture, University of the Philippines, Los Banos
(UPLB), Laguna, Philippines.

Dale Kloppenburg retired: Graduate UC Berkley, plant geneties, Lt. USNR, Plant
Breeder, Researeh Agronomist, now Taxonomy of Genus Hoya.

8

Collection number: 2012-4-031, 10 flowers in zip bag. 15 May 2012 (c/o MLD Guevara)

Holotype sheet 71846 (CAHUP)

71S4B

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( «f lli<

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S. f.n*rd*ns

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SlrKj. Lli'iif

tunurLWncr Mini (IntHKC- * tlnilrf I Mi nnncn.
Coioll* ilifillll) rtHfipJ idflin* wlor

njtierp from tijMhitif pint m rnmiHia f’J«' ll*b(fr iImi)*
|ir>iiirdi etfRin i>T rtth k.trf. Core** "bit' **>lb 1'"*' “f
pm k 111 iinrr Iu 1 >c eMrn Jed lir" »nl li dull nnpe-

B£uu.)II fr<ini hirkurit (irjrti*m Hr*} - I !*'•<■ i*-“i
«n(l ^yUrt*rE<l trt IPfl wrrrtlifcoii**

Pti.:

h ctifHcn

9

Hoya celsa Kloppenburg, Siar, Guevarra, Cajano & Carandang

ISSN # 2329-7336

Hoya celsa Kloppenburg, Siar, Guevarra, Cajano & Carandang sp. nova,
holoypus 71840 (CAHUP). Seetion Aeanthostemma (Blume) Kloppenburg. Calyeis
segmentis ovato-oblongis, obtusis, glabris, O.llem longis et 0.12 em latis; eorolla reeurva
1.00 em diametro eomplanatus, intus medio anulo paulo inerassato, glabro, 5-lobulato
ornato, extus glabra, intus apieibus exeeptis, dense pubeseenta, lobis ovatis aeutis;
eoronae foliolis earnosis, apieem eontrastre adseendentious spatulata, superne laneeolatis,
basi eanieulatis, dorso medio earinatus, antheris trapezoideis, appendiee hyalina ovata
aeuta; bilobus eorollae sinus attigens. Retinaeulum proximus eoronae apiees.

This new speeies is in the seetion Aeanthostemma (bilobed eoronal lobes) the
sepals are ovate-oblong obtuse, glabrous 0.11 em long and 0.12 wide; the eorolla is
reeurved 1.00 em in diameter flattened, outside is glabrous, inside exeept the apieal apex
densely pubeseent; lobes of the eorona with the inner lobes raised, spatulate with a
eentral keel on the dorsal surfaee, anthers are trapezoid, thin ovate with an aeute apex
bilobes reaeh the eorolla sinuses. The retinaeulum is near the eorona apex, (this last
eharaeter makes it different from any other bilobed hoya speeies I am familiar with).

Photomierographs and data below:

Pedicel: enlarged ea. 35x. Filiform, striet, terete, glabrous
1.0 em long and 0.08 em in diameter.

10

Flower outside view with pedieel and ealyx,
enlarged ea 18x. Corolla outside is glabrous,
sepals are elliptie and y4 way to the eorolla
sinuses.

Calyx: side view enlarged ea. 20x, ligules are present, 2-1 pattern.
Sepals glabrous, 0.11 em long and 012 em at the widest, apex
narrowly obtuse, a little basal overlap.

Ovaries: here shriveled, eolumnar 0.14 em long and base pair 0.07
em wide, glabrous.

Corolla: outside view enlarged ea. 12x,
glabrous, eut more than half way, showing
through is a raised pentagonal line on inner
surfaee around the eentral eolumn. Apex of lobes
aeute, broadest just outward from the sinuses.
Corolla is re volute.

Corolla inside view enlarged ea. 20x. This
surfaee is densely pubeseent exeept for lobe apex
area (0.07 em long), even the pentagonal raised
surfaee is eovered with indumentum.

Sinus - sinus

0.25 em

Sinus - eenter

0.20 em

Sinus - apex

0.35 em

Apex - eenter

0.50 em

Widest

0.27 em

11

Side view of a flower enlarged ea. 14x.
Corona is bi-lobed, inner apex is raised, outer
lobes reaeh the eorolla sinuses, eorolla is revolute,
typieal of Seetion Aeanthostemma speeies.
Anthers showing at top eenter are eovered by
inner apiees but still protrude.

Corona: bottom view enlarged ea. 20x. The
lobes are ehanneled, edges rolled under all the
way to the eentral eolumn whieh is hirsute, lobe
apiees turn under slightly.

Side view of the eorona enlarged ea. 25x.
The inner lobes are long spatulate with the ends
eurved over the eentral anthers, dorsal is eentrally
keeled. Bi-lobes flat toped along the sides but
turned sideways to meet at there apiees and
eurved up slightly.

Apex - apex 0. 1 8 em

Apex - end 0.21 em

Widest (dorsal) 0.07 em

Wide/ bi-lone 0. 1 0 em

Side ways view of the eoronal apex to show
a most unusual eharaeter of this speeies greatly
enlarged. To the right lower eenter is the
protruding white anther, and just below is the
narrow apex of the inner eoronal lobe apex.
Noteworthy is the dark retinaeulum to the left of
the white anther, it is unusually high up near the
flower eenter (Thus its name “celsa”), visible to
the left is the long anther wing ehannel,
proeeeding past the sides of the eoronal lobe.

12

Detail of this unusual positioning of the retinaeulum. On labeled pieture:

White protruding anther
Apex of inner eoronal lobe
Retinaeulum (extremely high up)
Anther wing

Dorsal of eoronal lobe

T)dge of bi-lobe

Side view of a eoronal seale enlarged ea.
43x. Inner lobe apex at top turns over the anthers,
the anthers aetually protrude between the inner
lobes. Lobe ends between the bi-lobes, here bi-
lobes are turned up slightly past the outer lobe
apex.

13

None of the pollinia
were attaehed to the
retinaeula. The

translators are typieal
of the Seetion
Aeanthostemma.

Retinaculum

length 0.12 mm
shoulder 0.09 mm

waist 0.06 mm

hip 0.09 mm

ext. 0.09 mm

Translator

length 0.18 mm

depth 0.05 mm

Translator/caudicle type: fb/ew

In this photo of the retinaeula with
pollinia (2) it is diffieult to determine
the preeise measurements but here is
my best estimate.

length 0.26 mm

widest 0.10 mm

Length

Width

Thickness

Leaf sample

(cm)

(cm)

(cm)

1

4.4

1.6

0.145

2

4.8

1.5

0.170

3

3.9

1.9

0.130

4

4.4

1.8

0.120

5

4.2

1.9

0.120

6

3.9

1.6

0.135

7

4.3

1.5

0.150

8

4.6

1.9

0.130

9

4.5

1.7

0.120

10

7.0

2.0

0.140

Mean

4.6

1.7

0.136

Range

3 . 9 - 7.0

1 . 5 - 2.0

0 . 120 - 0.170

14

Leaves: opposite, petiolate, glabrous, elliptic, base narrowly obtuse to cuneate, apex long
acute, nerves indistinct but pinnate.

References:

1. Philippine Section Acanthostemma Hoya Species by Dale Kloppenburg,
240 pp..

2. Species in Subsections of Acanthostemma by Dale Kloppenburg, illustrated
76 pp.

Contributors:

Ms. Mary Ann Cajano is the Herbarium Associate at (UPLB) University of the
Philippines, Los Banos, Laguna, Philippines.

Ms. Jennelyn M. Carandang, University Researcher Associate, Crop Science Cluster,
Institute of Plant Breeding, College of Agriculture, University of the Philippines, Los
Banos (UPLB), Laguna, Philippines.

Maria Luisa D. Guevarra, University Researcher, Fruit and Ornamental Crops Section,
Crop Science Cluster, Institute of Plant Breeding, College of Agriculture, University of
the Philippines, Los Banos, Laguna, Philippines.

Dale Kloppenburg retired: Graduate UC Berkley, plant genetics, Lt. USNR, Plant
Breeder and Research Agronomist, now taxonomist of Genus Hoya.

Dr. Simeona “Monina” V. Siar former University Researcher at the Institute of Plant
Breeding-Crop Science Cluster, University of the Philippines, Los Banos, Laguna
Philippines. She Helped me (Dale Kloppenburg) greatly for years with hoya species, we
all miss her. She died 19 December 2011.

15

Hoya celsa

Holotype CAH UP 71840

16

Hoya chiekoae Kloppenburg, Ferreras & Mendoza

ISSN # 2329-7336

Hoya chiekoae Kloppenburg, Ferreras & Mendoza sp. nova, holotypus #14628
(PUH) hie designatus. Epiphytiea in truneis ramisque arborum, alts seandens, ramosa;
ramis ramulisque filiformibus, flexuosis, teretibus, glabris, laxe foliatis, radieantibus;
foliis patentibus patulisve elliptieo laneeolatis aeuminatis, basi sensim in petiolum
euniatis, utrinque glabris, textura erassiuseule eoriaeeis, 4.5 — 7 em longis, medio fere 1.3
— 2.2 em latis, petiolo ea. 0.7 em longo; pedieellis filiformibus, ea. 2.3 em longis, glabris;
umbella 10 — 20 flora; ealyeis segmentis ovato-oblongis, obtusis, glabris, longitudine vix;
0.14 em exeedentibus; eorolla reeurva, usque infra medium 5-lobata, extus glabra, intus
apieibus exeeptis, minute et dense puberula, lobis ovatis aeutis, margine minute eiliatis;
eoronae foliolis earnosis, superne triangulartus, basi breviter exeisis, medio
rhomboideo-applanatis, apiee spatulatus; antheris trapezoideis, appendiee hyalina ovata
aeuta; retinaeulo rhomboideo minuto. Hoya Seetion Aeanthostemma Kloppenburg,
similes Hoya wayetii Kloppenburg 1993 sed eorolla parviorum 1.40 em diametriente
eomplanatus eontrastre 1.60 em; eoronae folia itidem parviorum 0.25 em longis (apex -
apex) 0.25 em eontrastre 0.38 em; retinaeulum multus breviorum 0.10 mm eontrastre
0.16 mm, differt.

This new Philippine hoya speeies is named for George Mendoza’s mother Chieko
who at this time is 82 years old. In some respeets this new hoya speeies is elosest to
Hoya wayetii Kloppenburg both of whieh are bilobed speeies thus in the Seetion
Aeanthostemma Kloppenburg but this speeies eorolla flattened is smaller 1.40 em in
diameter versus 1.60 em, likewise the eoronal lobes are shorter (apex to apex) 0.25 em
versus 0.38 em; there are differenees in the pollinarium also, for one thing the
retinaeulum is mueh shorter 0.10 mm long eompared to 0.16 mm. There so far about 20
speeies that have bulbous protrusions from the eentral eoronal eolumn (ventral surfaee)
this speeies is unique in having the projeetions align with the lobe ehannel as to extend
this ehannel to the eolumn. Below are mierophotographs with measurements and details.

Peduncle: is 4.8 cm long, 0.07 cm in diameter.

Pedicel: Enlarged ea. 2 lx, curved, terete, glabrous,
2.3 cm long, 0.11 cm in diameter, rose colored,
uniform, slick but very finely granulate, at the calyx
base it is bulbous and 0.23 cm in diameter.

Calyx: side view

enlarged ea. 16x. Sepals are
short, 0.14 cm long, 0.15 cm
at the widest, 1/3 overlap,
glabrous on both surfaces.

17

Calyx: top view (dorsal) enlarged ea. 2 lx.
Long narrow ligulas are present at the sinuses,
edges of the sepals are slightly ragged. Sepals are
sub round with an obtuse apex.

Ovaries: dome shaped, glabrous, 0.15 em
tall and base pair 0.10 em wide.

Corolla: ventral surfaee enlarged ea. 18x.
The eorolla is revolute as other Aeanthostemma
speeies are, this surfaee is glabrous and shiny.
Apieal ends rolled under above are glabrous.

Sinus - sinus

0.30 em

Sinus - eenter

0.25 em

Sinus - apex

0.55 em

Apex - eenter

0.70 em

Widest

0.35 em

Dorsal surfaee of the eorolla enlarged as
above, this surfaee is pubeseent all over exeept the
apieal ends. Slight pentagonal thiekening around
the eenter.

Corona: ventral view enlarged ea. 18x. The lobes
are ehanneled with the edges rolled under. There are two
bulbous projeetions from the eentral eolumn that join at
their eenter to extend to the ehannel eentrally. Surfaees
are glabrous.

18

Dorsal view of the eorona enlarged as above.
Surfaees are glabrous, inner lobes are spatulate, raised
and toueh in the eenter, there is a low keel all the way
from the inner apex to outer lobe apex, lobe surfaee is
slightly eoneave. Lobe are somewhat diamond shaped.
Bilobes extend along the sides, edges are rounded and
toueh at their outer apiees. The anther wings have thiek
sides and do not projeet beyond the sinuses.

A seetion of the ventral eoronal lobe showing the
rather rare type bulbous projeetions from the eentral
eolumn that eontinue the ehannel inward (eentrally).

Apex - apex

0.25 em

Apex - end

0.28 em

Widest

0.12 em

Ret. - ret.

0.07 em

Ret. - eenter

0.09 em

Aw. - Aw.

0.19 em

Aw. - eenter

0.19 em

As above to further show the ehannel extension
eentrally (eenter top of photo). The sides of the lobes are
suleate and note how the lobe edges forming the ehannel
are rolled under.

Coronal seale side view enlarged ea. 36x.

Inner spatulate lobes aetually eover the
anther so it does not show from above, here a little
below the inner lobe. Bi-lobes extend with
rounded sides, beyond the ends if the lobe, and
meet at their apiees, an anther wing edge showing
at lower right side does not eurve mueh (it is not
seythe shaped).

19

Pollinarium:

Enlarged ca. 160x.

Pollinium

length 0.45 mm
widest 0.14 mm

Retinaculum

length 0.10 mm
shoulder 0.06 mm
waist 0.05 mm
hip 0.06 mm
ext. 0.03 mm

Translators

length 0.20 mm
depth 0.03 mm

Caudicle

bulb diam.0.07 mm

Translators should
most likely be
elassified as

perpendieular “p”.

Ratio s:p/ret 4.5
p/w 3.2

Foliage: Opposite, petiolate, glabrous, linear, thiek, enervis, base euneate apex short
aeute dorsal eoneave. Leaf measurements below in eentimeters.

Translator/caudicle type: fb/ew

UF901

Leaf 1

Leaf 2

Leafs

Leaf Length

9.5

6

12

Leaf Width

1.5

2

1.6

Petiole

1.5

0.9

1.3

Peduncle

6.5

Stem

Diameter

0.2

20

Pictures below from George Mendoza via E-mail, 3 August 2011. Cluster of 16 flowers
stay open more than a week.

21

Contributors:

Ulysses Ferrer as, botanist, plant collector, plant taxonomist.

Dale Kloppenburg retired: Graduate of UC Berkeley, plant genetics, Lt. USNR, Plant
Breeder and Research Agronomist, now taxonomist of Genus Hoya.

George Mendoza, Landscape Artist, Nurseryman and Plant Explorer from Quezon City,
Philippines, visit his web site www.forest-treasures.com.

References:

1. Philippine Section Acanthostemma Hoya species. Description of 30 species, and
with tables, 240 pages.

2. Rumphia 4 (1848) 49-50. In Museum Botanicum Lugduno-Batavum 1 (1849) 57.

3. Dr. Schlechter’s Hoya species by Dale Kloppenburg 6427 N. Fruit Ave. Fresno CA

93711 Copyright 1993 © All rights reserved. ORCHA Pub. Co. 65 pages.

4. Hoya carmelae Kloppenburg & Ferreras, Fraterna Vol. 23 #4, 9-13:2010.

5. Hoya corazoniae Kloppenburg, Siar & Ferreras, Fraterna Vol. 23 #4, 15-19: 2010.

22

6. Hoya kanaloensis Kloppenburg, Siar & Ferreras, Fraterna Vol. 23 #4. 24-27: 2010.

7. Philippine Hoya Species by Dale Kloppenburg, Eleventh edition revised September

2009 704 pages

23

4628 ^

UF901

14 August 2011

APOCYNACEAE-ASCLEPIADOIDEAE

Hoya chiekonae Kloppenburg, Ferreras & Mendoza
Luzon. Province of Aurora

Ait. Unrecorded

Flowering material collected from cultivated specimen in
George Mendoza’s garden.

Vine with mildly scented flowers
Photo taken

Replicates: None Collector Ulysses Ferreras

The above sheet was prepared and made by Ulysses Ferreras and deposited at (PUH)
Photo of Holotype sheet sent by e-mail from Ulysses.

24

Hoya unruhiana Kloppenburg, Siar, Mendoza, Cajano & Carandang

ISSN # 2329-7336

Hoya unruhiana Kloppenburg, Siar, Mendoza, Cajano & Carandang speeies
nova, Typus 71807 (CAHUP) hie designatus, differt ab omnis parvus pollininaria Hoya
speeies. Frutex seandens, infloreseentiis exeeptis glabra, ramis teretibus, folliis earnosis
oblongo-ovbovatis, 11.2 em longis, 3.4 em latis, glabris, basi subobtusis, apiee
aeuminatis, triplinervis, petiole ea. 1.5 em longo, peduneulo ea. 12 em longo,
umbelliformibus globosum, pedieillis graeilibus filiformibus 1.2 em longis 0.06 em
diametiente, ealyees segmentis ovatis, subobtusis, glabris ea. 0.11 em longis et 0.08 em
latis, sin ligulae; eorolla rotata, ea. 0.74 em diametro eomplanatus, usque infra medium, 5
lobata, extus glabram, intus uniformiter pubeseebte; eoronae lobis anteriore dentatis,
posteriore ereeta, obtusis, subtus usque ad basin eanalieulatis, supra eoneavis, medio
earnaeus, 0.14 em longis.

This new speeies has very short pollinia ea. 0.25 mm with translators different
from other hoya speeies with short pollinia. This is a elimbing plant glabrous all over
exeept for the infloreseenee, stems are round, leaves fleshy oblong-obovate 11.2 em long
and 3.4 em wide, glabrous, base sub-obtuse with the apex aeuminate, triplinerved,
pedunele about 1.5 em long, peduneles about 12 em long; flower elusters globose, the
pedieels are fine filiform 1.2 em long and 0.06 em in diameter, the sepals are ovate apex
sub obtuse, glabrous about 0.11 em long and 0.08 em widest, no ligules observed; eorolla
is rotate about 0.74 em in diameter flattened, eut to below the middle, 5 lobed, outside
glabrous inside uniformly pubeseent; lobes of the eorona inside dentate outer lobe raised
and obtuse, below ehanneled and above eoneave with a eentral keel. Lobes are 0.14 em
long.

Measurements and pietures of parts follow:

Pedicel: enlarged ea. 4 lx, filiform, glabrous, terete, very
fine granulate lentieular surfaee 1.2 em long 0.06 em in diameter,
enlarging slightly near ealyx base.

25

Calyx: side view enlarged ea. 25x. Sepals
are thin, overlap slightly at base, no ligules,
surfaee finely granulate, extend ^2 or less to the
eorolla sinuses; 0.11 em long and 0.08 at the
widest.

Side view of a flower enlarged ea. 18x.
Corolla outside glabrous and rotate when fully
open.

Sinus - sinus

0.18 em

Sinus - eenter

0.14 em

Sinus - apex

0.27 em

Apex - eenter

0.37 em

Widest

0.23 em

Outside surfaee of the eorolla enlarged as
above, lobes are broadest just above the sinuses,
surfaee glabrous, apex aeute.

Inside surfaee of a eorolla lobe enlarged
about 20x, the surfaee is uniformly pubeseent. To
the lower left is a small portion of the eorona
showing.

26

Inside view of a flower enlarged ea. 8X. The
eorona has outer raised lobes with a relatively
long eentral eollar, surfaees glabrous, ehannel on
ventral plainly visible, Corolla slightly sunken
under the eorona.

Outside surfaee of the eorona enlarged ea.
58x. The seale lobes are relatively thin along the
edges, ehanneled on the visible dorsal side, apex
rounded, surfaees suleate and glabrous, anther
wing apiees sub aeute.

Top view of the eorona enlarged ea. 32x.
The lobes are elliptie inner lobes dentate slightly
keeled and do not eover the eenter, retinaeula and
anther wings visible from above.

Apex - apex

0.14 em

Apex - eenter

0.15 em

Widest

0.06 em.

Ret. - ret.

0.02 em

Ret. - eenter

0.02 em

Aw. - aw.

0.06 em

Aw. - eenter

0.06 em.

27

View of an individual coronal scale. Outer
lobe raised with a rounded (obtuse) ends the
actual apex tends to turn down slightly. Dorsal is
slightly concave with a low central keel and
surface longitudinally sulcate, glabrous. Inner
lobe raised, apex could be considered terete and
end sub acute (or nearly spatulate) it is exceeded
by the membranous anther.

28

Pollinium

length

0.24 mm

widest

0.1 1 mm

Retinaculum

length

0.09 mm

shoulder

0.07 mm

waist

0.04 mm

hip

0.05 mm

ext

0.02 mm

Translator

length 0.04 mm

Caudicle

bulb diam. 0.02 mm

Ratios: p/r 2.7 p/w 2.2

Translator/Caudicle type: p/o (difficult to determine in these photos but probably as
indicated) most small pollinia have either Ip/cw or fp/cw types. This species is unique in
this respect.

Leaves: opposite, glabrous, long petiolate, elliptic, base obtuse, apex acute, plinerved,
nerves lighter than the leaf surface.

This new hoya species is named for Carolyn Unruh of Kingsburg, California. She
is an avid hoya grower and has since the beginning been a member of the International
Hoya Society (IHA).

29

14. Quezon 3-125

Length

Width

Thickness

Leaf sample

(cm)

(cm)

(cm)

1

12.6

4.2

0.175

2

13.2

4.1

0.150

3

14.2

4.1

0.135

4

14.7

3.5

0.160

5

11.1

3.5

0.185

6

13.3

3.2

0.145

7

8.9

3.0

0.145

8

7.9

2.8

0.130

9

7.5

2.8

0.135

10

8.5

2.6

0.115

Mean

11.2

3.4

0.148

Range

7 . 5 - 14.7

2 . 6 - 4.2

0 . 115 - 0.185

Notation: Hoya sp. Quezon 3-125 via Monina Siar 16 May 2011 in zip bag one flower
eluster, 8 flowers. Worked up 5/27/2011 # 14.

Photos from George Mendoza, Manila, Philippines.

DSC 3901

30

Contributors:

Ms. Mary Ann Cajano is the Herbarium Assoeiate at (UPLB) University of the
Philippines, Los Banos, Laguna, Philippines.

Ms. Jennelyn M. Carandang, University Researeher Assoeiate, Crop Seienee

Cluster, Institute of Plant Breeding, College of Agrieulture, University of the Philippines,

Los Banos (UPLB), Laguna, Philippines.

Dale Kloppenburg retired: Graduate UC Berkley, plant geneties, Lt. USNR, Plant
Breeder and Researeh Agronomist, now taxonomist of Genus Hoya.

31

George Mendoza, Landseape Artist, Nurseryman and Plant Explorer from Quezon City,
Philippines, visit his web site www.forest-treasures.eom .

Dr. Simeona “Monina” V. Siar former University Researeher at the Institute of Plant
Breeding-Crop Seienee Cluster, University of the Philippines, Los Banos, Laguna
Philippines. She Helped me (Dale Kloppenburg) greatly for years with hoya speeies, we
all miss her. She died 19 Deeember 2011.

References:

1. Translator Types in the Genus Hoya by Dale Kloppenburg.

2. Philippine Hoya Translator Types Illustrated in 5 parts.

3. Loliage of Hoya speeies By Dale Kloppenburg, modified 9/3/2010 (5 volumes).

4. Hoya Loliage by Dale Kloppenburg, 6 volumes updatedl 0/4/20 10 177 pages.

32

Reduced picture of Type sheet 71807 (CAHUP).

f

I

a*

71607

FLORA OK I MF. PHILIPPINES
Coticgi; of Agriculture llerharium
University of the Philippines (CAHUP)
Coliege. Lo.s Bailos. Laguna

ASCLEPIADACEAE

HoVd

ISOIAPE

LLIZON: Quez-on Preiviuce, Potilio Island

Seuii-globosc to globose umliel. uith IS-28
tlowcrs in u duster. Flowers crennn v\hite,
Haltened corolla with outer edges pointing
downward, coauia (xile \ello\v

Dale of collection: Ma\ Ci, 2010

33

Hoya williamsiana Kloppenburg, Siar, Mendoza, Cajano, Guevarra

& Carandang issN # 2329-7336

Hoya williamsiana Kloppenburg, Siar, Mendoza, Cajano, Guevarra et Carandang
speeies nova, holotypus #71852 (CAHUIP) hie designatus, differt ab omnis parvus
pollinaria Hoya speeies. Frutex seandens, infloreseentiis exeeptis glabra, ramis teretibus,
folliis eamosis oblongo-obovatis, 9.6 em longis, 3.6 em latis, glabris, basi subobtusis,
apiee aeuminatis, plinervis, petiolis 1.4 em longo, umbelliformibus globosum, pedieillis
graeilibus filiformibus 1.7 em longis 0.04 em diametiente eomplanatus, ealyees
segmentis ovatis, subobtusis, glabris ea. 0.10 em longis et 0.06 em latis, sin ligulae;
eorolla rotata, ea. 0.77 em diametro eomplanatus, usque infra medium, 5 lobata, extus
glabram, intus uniformiter pubeseebte; eoronae lobis anteriore dentatis, posteriore
ereeta, obtusis, subtus usque ad basin eanalieulatis, supra eoneavis, medio earnaeus, 0.10
em longis.

This new speeies has very short pollinia ea. 0.20 mm long with translators
different from other hoya speeies. This is a elimbing plant glabrous all over exeept for
the infloreseenee, stems are round, leaves fleshy elliptie 9.6 em long and 3.6 em wide,
glabrous, base sub-obtuse with the apex aeuminate, plinerved, petiole 1.4 em long, flower
elusters globose, ea. 14 flowers in a eluster; the pedieels are fine filiform 1.7 em long
and 0.06 em in diameter, the sepals are ovate apex sub obtuse, glabrous about 0.10 em
long and 0.06 em widest, no ligules observed; eorolla is rotate about 0.77 em in diameter
flattened, eut to below the middle, 5 lobed, outside glabrous inside uniformly pubeseent;
lobes of the eorona inside dentate outer lobe raised and obtuse, below ehanneled and
above eoneave with a eentral keel. Lobes are 0.10 em long.

This new speeies is named for Jerry Williams of Rainbow Gardens in Vista
California. For years Jerry had a large greenhouse of Hoyas for propagation and sale to
eolleetors worldwide. He was aetive in the International Hoya Assoeiation, publisher of
Fraterna. He also eolleeted with others in the Philippines ineluding Palawan Island.

Pedicel: enlarged ea. 83x, filiform, terete, glabrous, 1.70 em long
and 0.04 em in diameter.

Side view of the ealyx
enlarged ea. 35x.

Sepals: linear- triangular,

glabrous, ligules present but
very diffieult to deteet, 0.10
em long 0.06 em wide near
base. Apex obtuse, very little
overlap at base; extend just
to the sinuses of the eorolla.

34

Calyx with sepals and ovaries shown
enlarged as above.

Ovaries: eolumnar, glabrous, 0.06 em tall
and base pair 0.03 em wide.

Corolla: ventral (bottom) view enlarged ea.
14x, surfaee is this glabrous small slightly raised
eentral eolumn.

Sinus - sinus

0.18 em

Sinus - eenter

0.13 em

Sinus - apex

0.26 em

Apex - eenter

0.36 em

Widest

0.20 em

Dorsal (inside) view of flower enlarged as
above. Surfaee with seattered pubeseenee. Lobes
reaeh the eorolla sinus or nearly so, elliptie
shaped, outer lobe obtuse, dorsal eoneave and
keeled down the eenter, inner lobe spatulate,
eenter open, outer lobe raised. Corolla rotate
edges rolled under.

Another pieture of the flower enlarged ea.
ea. 20x.

Apex - apex

0.10 em

Apex - eenter

0.12 em

Widest

0.05 em

Ret. - ret.

0.05 em

Ret. - eenter

0.04 em

Aw. - aw.

0.09 em

Aw. - eenter

0.07 em

35

Enlarged to determine
eoronal eolumn type. The
eolumn here is very large
and appears to be smooth
on its sides and around its
base under the eoronal
lobes ventral sides.

The ventral sides of
the lobes are suleate,
ehannel edges rolled under
evenly.

The apiees of the
eoronal lobes are
emarginate. Anther wing
apiees protrude only
slightly sides are broadly
rounded the apex with U
shaped ends.

36

Pollinarium enlarged ea. 450x.

Pollinium Ratios: p/r 2.9 p/w 2.0

length

0.20 mm

widest

0.10 mm

Translator/caudicle type: d/o

Retinaculum

length

0.07 mm

Caudicle

shoulder

0.08 mm

bulb diam.

0.02 mm

waist

0.04 mm

hip

0.05 mm

Translator

ext.

0.03 mm

length

0.05 mm

depth

0.02 mm

Leaves: opposite, petiolate, glabrous, elliptie. Base obtuse, apex aeute, plinerved,
anastomosing, nerves lighter eolored than the leaf surfaee.

37

11. Quezon 2-057

Length

Width

Thickness

Leaf sample

(cm)

(cm)

(cm)

1

13.0

4.2

0.115

2

12.8

4.8

0.135

3

13.8

4.7

0.110

4

9.4

3.1

0.160

5

8.1

3.0

0.130

6

6.4

3.0

0.145

7

8.5

3.1

0.110

8

8.8

3.3

0.125

9

7.8

3.5

0.135

10

7.1

3.0

0.160

Mean

9.6

3.6

0.133

0 . 110 -

Range

6 . 4 - 13.8

3 . 0 - 4.8

0.160

Photos from George Mendoza, Manila, Philippines.

38

DSC 3140

DSC 3143

Collection Number Quezon 2-057. Via Monina Siar 16 May 2011.

Somewhat similar to Hoya unruhiana (CAHUP 71807). There is no present hoya species
with pollinia 0.20 mm long and with the translators d/o.

Contributors:

Ms. Mary Ann Cajano is the Herbarium Associate at (UPLB) University of the
Philippines, Los Banos, Laguna, Philippines.

Ms. Jennelyn M. Carandang, University Researcher Associate, Crop Science

Cluster, Institute of Plant Breeding, College of Agriculture, University of the Philippines,

Los Banos (UPLB), Laguna, Philippines.

39

Maria Luisa D. Guevarra, University Researcher, Fruit and Ornamental Crops Section,
Crop Science Cluster, Institute of Plant Breeding, College of Agriculture, University of
the Philippines, Los Banos, Laguna, Philippines.

Dale Kloppenburg retired: Graduate UC Berkley, plant genetics, Lt. USNR, Plant
Breeder and Research Agronomist, now taxonomist of Genus Hoya.

George Mendoza, Landscape Artist, Nurseryman and Plant Explorer from Quezon City,
Philippines, visit his web site www.forest-treasures.com .

Dr. Simeona “Monina” V. Siar former University Researcher at the Institute of Plant
Breeding-Crop Science Cluster, University of the Philippines, Los Banos, Laguna
Philippines. She Helped me (Dale Kloppenburg) greatly for years with hoya species, we
all miss her. She died 19 December 2011.

References:

1. A Hoya Pollinaria File (4 Sections) by Dale Kloppenburg 2012 64 pages

2. Translator Types in the Genus Hoya by Dale Kloppenburg 16 pages

3. Hoya unruhiana Kloppenburg, Siar, Mendoza, Cajano & Carandang species
nova, Typus 71807 (CAHUP)

Photos of leaves and flowers: Year 2011

40

41

42

Holotype - CAHUP # 71852

71852

FJ-OKA OF THE ^>t^llJ!‘F[^ES
CfjIU-ct (if Ajiriculiuri: IlLTburiuni
l<nivcritil,v of llii- Fluti|)pinc.t (CAIHJPI
Calk'ev, l.agtina

APCKYNAfEAE HOLOTYTE

Huya willianiMinioiia Kl[ip|it‘nliuri;. Siar, Cajanti,
(iuciana & raraiiilang

E’OLIJ.I.O IStjAND: Qtiv/na I’rmiacc, iturdc4»
Municipalitvi. Daranga} Hurdcuv Silio Aluyon,
Fucingbaia.

FluKcnLil uiiibtl, raade up uf 13-15 IKivicrK in a cIihut.
ConiDa (lai wilh blush of pak pink, tdgi-i rolleij antler
thus narrow lulii-i presence of visible huirs. Curona with
linEC (if vers li)>lil pink lonarits outer Inbc.

Orisitull) calftrleJ from Puiinitbslu, Iturdrus, Polilla
Island, ilutron Province. I.lvc specimen planted ind bcine
mamialnril »l tPH icrcenhcuve.

c AJ sNo & I-. Sl.sitWAk
Pel.! Kloppcnburg.

Kehrujn 6-s, vQin

43

Hoya coriacea subsp. philippinensis Kloppenburg, Siar, & Ferreras

ISSN # 2329-7336

This hoya species was collected by Ulysses Ferreras in the Philippines on Mindanao
Island, Province of Davao del Sur, Municipality of Kiblawan, Brgy. Kimlawis, Sito Bong
Mai, loco dicto-Lafla at an altitude of 798 masl. Collection number UF 755.

Habitat: Specimen found clambering over a Ficus minahassae tree in a residual forested
patch above a landslide along the banks of the Mai river. Forest dominated by
Gymnostaoma sumatranum. Understory trees include Neonauclea formicaria. Ficus nota.
Ficus variegata and Ficus minahassae. A profusely growing vine with mildly scented
flowers.

Material sent via Dr. Simeona V. Siar 1/22/10, 3 flowers in small poly bag.

Hoya coriacea subsp. philippinensis Kloppenburg, Siar & Ferreras subsp. nova, Typus
71721 (CAHUP) hie designatus. Similis Hoya coriacea Blume Synonym Hoya
angustisepala (Elmer) Burton et {Hoya mindorensis Elmer) sed pedicillis glabris non
pubescens; calyx extus sparsim hirsutum non puberulum; corolla complanatus 2.9 cm
diam. contrastre 2.5 cm; coronae lobus angulo exteriore obrusus non reclinatum producta,
differt.

The new species is similar to Hoya coriacea Blume but different in that the pedicels are
glabrous not pubescent; the calyx outside is sparsely hirsute not puberulous; corolla is
larger 2.9 cm flattened versus 2.5 cm and the coronal outer apex is obtuse and not turned
down.

Sepals longer 0.60 vs. 0.38: corolla larger 2.9 cm diam. vs. 1.9 cm, pubescent vs. villous;

pedicels 3.2 cm long vs. 1.9-3. 1 cm.

Pedicel: 3.5 cm long, curved, terete, glabrous, lenticulate, very
slightly enlarged at the calyx area. Enlarged about 16x.

44

Calyx: lobes linear, reaeh the eorolla sinuses, no
overlap of sepals, apex aeute. 0.60 em long, widest at
base 0.15 em, edges eiliate, no ligules. Enlarged
about 8x.

Ovaries: glabrous, eolumnar, 0.21 em long. Base
pair 0.17 em broad. Enlarged about 8x.

Corolla: reflexed, outside glabrous, inside
pubeseent, sinuses eonduplieate, eentral dorsal
area sunken (eoneave) with a ring of hirsute eells
pointing eentrally, apieal end aeute and dorsal
glabrous. Enlarged about 8x.

Sinus - sinus 0.70 em

Sinus - eenter 0.65 em

Sinus - apex 0.70 em

Apex - eenter 1 .45 em

Eeft sinus area with
eonduplieate edges
at the sinus. Right
the inside apieal
area.

45

Enlarged about 8x. Inside surfaee of the
eorolla, note inward pointing hirsute eells near
eenter, this is under the eorona.

Corona: glabrous, anthers ereped, inner
apex nearly toueh in eenter are dentate, dorsal
keeled to the outer apex whieh is turned down and
emarginated and raised above inner lobes. Below
tunnel of ehannel visible and open, edges
overlap, eenter eolumnar 0.05 em tall to ovary
base, suleations nearly invisible. Retinaeula
hidden.

Apex - apex

0.53 em

Apex - eenter

0.55 em

Ret. - ret.

0.15 em

Ret. - eenter

0.15 em

Aw. - aw.

0.30 em

Aw. - eenter

0.40 em

O Pietures in this group enlarged about 17x. Upper

left top view of the eorona with ereped anthers Upper
right end of eorona seale showing ehanneling, note no
suleate surfaees. Lower left side view of a eoronal
seale

46

Reduced copy of the Holotype sheet at
CAHUP.

Leaves: ovate glabrous, leathery, base
obtuse, apex acute-acuminate, nerves
pinnate ca. 50° to the midrib, 10-13 cm
long X 5-6.7 cm widest. Petioles ca. 2
cm long

47

Pollinium enlarged about 165x.

Pollinium

length

1.00 mm

widest

0.26 mm

Retinaculum

length

0.40 mm

shoulder

0.10 mm

waist

0.08 mm

hip

0.1 1 mm

ext.

0.02 mm

Translators

length

0.45 mm

Caudicle bulb: deltoid

48

49

Picture via Ulysses Ferreras

Contributors:

Dale Kloppenburg retired: Graduate of UC Berkeley, plant genetics, Lt. USNR, Plant
Breeder and Research Agronomist, now taxonomist of Genus Hoya.

Dr. Simeona “Monina” V. Siar former University Researcher at the Institute of Plant
Breeding-Crop Science Cluster, University of the Philippines, Los Banos, Laguna
Philippines. She Helped me (Dale Kloppenburg) greatly for years with hoya species, we
all miss her. She died 19 December 2011.

Ulysses Ferreras: botanist, plant collector, plant taxonomist.

50

Hoya myrmecopa subsp. kapatalanensis Kloppenburg, Siar,

Cajano, Guevarra & Carrandang

ISSN # 2329-7336

Hoya myrmecopa subsp. kapatalanensis Kloppenburg, Siar, Cajano, Guevarra &
Carandang subsp. nova. Holoyupus 71853 (CAHUP) hie designatus, A Hoya subseetion
Angustiearinata Kloppenburg subsp., folia breviter petiolate, laneeolata-elliptiea, baso
euneata, apieae aeuminatus, utrinseeus glabra; petiolus glabra, sub-teretus, rugatus,
eurvus. Calyx brevis segmenta elliptiea, glabra. Corolla revoluta extus glabra, intus
puberulous. Corona phyla a gynostegio breviter, superata, aseendentia, antiee rotundatis
postiee obtusa. Similis sp. sed pedunele longior 8.9-14.0 em eontrastre 1-2 em; ovaria
longior 0.16 em eontrastre 0.12 em et eoronae lobus longior, 0.28 em eontrastre 0.21 em
et pollinia longior 0.45 mm eontrastre 0.42 mm, differt.

A serambling small leaved subspeeies found 19 July 2007 at UP Landgrant, Kapatalan,
Cinaloan, Laguna. It is similar top the speeies eolleeted in Sulawesi on the NW side of
Lake Poso. This speeies is a borderline bilobed speeies exhibiting short bilobes under
some environmental eonditions and not under others. This subspeeies is most strikingly
different from the speeies in the mueh longer peduneles 8.9-14.0 em versus 0.28 em. In
general this subspeeies is larger in most part.

Leaves: narrow, laneeolate-elliptie rather thiek enervis bit pinnate, 0.30-0.48 em long,
0.12 - 0.16 em at the widest near eenter, both surfaees glabrous but a few fine hair eells
on the upper surfaee near the petiole attaehment, dorsal more rugose in older foliage.
Apex tapered aeute, base tapered euneate. Petiole sub terete, rugose, eurved.

Pedieel, ealyx and ovaries enlarged about 8x.

Pedicel: is terete, glabrous, 1.10 em long, 0.08 em in diameter
sepals with little overlap.

Sepals: narrow elliptie, glabrous, little basal overlap. 0.14 em
long and 0.06 em at the widest at base, glabrous, apex sub-aeute
dark ligules present.

Ovaries: eolumnar 0.16 em long and base pair 0.07 em wide,
glabrous.

51

Side view of a flower enlarged about 8x. The
eorolla is revolute, thin, outside glabrous inside
puberulous. Corona sits eonspieuously above the
eorolla.

Corolla:

Sinus - sinus

0.20 em

Sinus - eenter

0.15 em

Sinus - apex

0.40 em

Apex - eenter

0.50 em

Widest

0.25 em

Corona: enlarged about 16x. Surfaees are glabrous.
Inner lobes are tapered eylindrieal and raised to the
membranous anthers in the eenter. The dorsal lobes
are narrow, eentrally eoneave, edged rolled and
thiek, outer lobe well above the eorolla and side
lobes rise toward this apex as rudimentary bilobes.
Anther wings and retinaeula well exposed between
the narrow eoronal lobes.

Side view of a eoronal seale enlarged about 32X.
Inner lobe raised round, above the triangular anther.
Dorsal of lobe narrow and apex obtuse tapering
down to the ehanneled underside, with rudimentary
lobes on either side extending about y4 the way to the
outer apex.

Apex - apex
Widest dorsal
Ret. - ret.

Ret. - eenter
Aw. - aw.
Aw. - eenter

0.28 em
0.08 em
0.08 em
0.12 em
0.12 em
0.25 em

52

Pollinarium enlarged about 165x.

Pollinium

length 0.45 mm

widest 0.16 mm

Retinaculum

length 0.13 mm

should 0.12 mm

waist 0.08 mm

hip 0.09 mm

ext 0.05-.09 mm

Translator

length 0.12 mm

depth 0.02 mm

Caudicle

bulb 0.05 mm

Translator/caudicle type: Is/o

Contributors:

Ms. Jennelyn M. Carandang is a University Researeh Assoeiate, Crop Seienee Cluster-
Institute of Plant Breeding, University of the Philippines, Los Banos (UPLB), Laguna,
Philippines.

Ms. Mary Ann Cajano is the Herbarium Assoeiate at (UPLB) University of the
Philippines, Los Banos, Laguna, Philippines.

Maria Luisa D. Guevarra, University Researeher, Fruit and Ornamental Crops Seetion,
Crop Seienee Cluster, Institute of Plant Breeding, College of Agrieulture, University of
the Philippines, Los Banos, Laguna, Philippines.

Dale Kloppenburg retired: Graduate UC Berkeley, plant geneties, Lt. USNR, Plant
Breeder, Researeh Agronomist, now taxonomy of Genus Hoya.

Dr. Simeona “Monina” V. Siar was head of the Plant Breeding Department at UPLB
helped me (Dale Kloppenburg) greatly for years with hoya speeies, we all miss her. She
died 19 Deeember 2011.

Colleeted by Dr. Siar & Ann Cjano in Laguna provinee, Siniloan Munieipality, UP
Landgrant, Barangay Kapatakan. Altitude 300 m asl growing on a Fieus nota ‘tibig’ tree.

53

Reduced copy of the Holotype sheet incorrectly labeled as to species (it is the
subspecies).

fJ.OHA iUH Tlii; 14111. M'PFNKs
Cvilttff of \Krii-«||urf lfL-rtigihiipii

ifayn Kh-ijn*

” '•-‘■•I.- *i.i. //.'i*;

1^*1 r-hp fed r.^V

rWwnrffi* - 14.11

s s. M. ^.r>, [".ij

Swi

Ju|) IJi

54

Hoya pseudoleytensis Kloppenburg, Mendoza, Guevarra &

Carandang 201 3 ISSN # 2329-7336

Hoya pseudoleytensis Kloppenburg, Mendoza, Guevarra & Carandang sp. nova,
holotypus 71860 (CAHUP) hie designatus. Sp. nova hie Section Acanthostemma (Blume)
Kloppenburg, folia similes Hoya bilobata Schlechter 1906; Hoya leytensis (Elmer) C. M.
Burton 1991; Hoya mernoria Kloppenburg 2004, sed cum flos differt.

This new species is in the Section Acanthostemma (Blume) Kloppenburg, but
differs from all other species in this section. The foliage is most similar to Hoya bilobata
Schlechter 1906; Hoya leytensis (Elmer) C. M. Burton 1991 and Hoya mernoria
Kloppenburg 2004. The main differences are shown in the table below: From Hoya
bilobata the pollinia are 0.32 mm long vs. 0.19 mm, calyx is triangular versus ovate,
corona triangular (sloping) not domed shaped, area surrounding the column is clean not
pubescent. From Hoya leytensis whose pollinia is 0.21 mm long, calyx 0.15 cm long or
less, pedicels longer 1.2- 1.7 cm vs. 0.5- 0.8 cm also there is no ‘‘ciliated processes
between the sinuses or of a ciliate rim around the pistil”. Differs from Hoya mernoria
pollinium lengths are similar 0.32 mm vs. 0.30 mm, calyx is triangular not round, and
area around column with striking bulbous protrusions unlike the clear area in this species.

Character

H. pseudoleytensis

H. bilobata

H. leytensis

H. mernoria

Leaf

Uniform 1.5 cm x

1 cm

1.7-2.2X
1.3-1. 8 cm

1.0 x 1.2
tapering to
each end

4-9.5 X 2-2.5
cm elliptic-
lanceolate,
base cuneate

Pollinia length

0.32 mm

0.19 mm

0.21 mm

0.30 mm

Translator/caudicle

type

fb/cw

fb/cw

?

fb/cw

Calyx

Triangular; 0.09
cm long; 0.06 cm
widest

Oblong -
obtuse 0. 1

cm

Oblong, 0.15
cm long or
shorter

Round? 0.15
cm long

Ligules

1 at each sinus

1 at each
sinus

?

2-1-0-1-1

Corona lobe Apex -
apex

0.17 cm

0.10 cm

?

0.26 cm

Pedicel

Various lengths;

1.2- 1.7 cm

0.8 cm

0. 5-0.8 cm

Various
lengths;
longest 1.5
cm

Other

Area around the
column is clear

Area

around the
column is
pubescent

With ciliated
processes
between the
sinuses or a
ciliate rim
around the
pistil

Ai'ea around
the column
with striking
bulbous
protrusions

55

Photos and data below:

Pedicel: enlarged ea. 25x, it is eurved, glabrous, terete, of
various lengths, 1.2 - 1.7 em long and 0.06 em in diameter.
Bulbous at attaehment to the pedunele.

Calyx: side view enlarged ea. 22x,
sepals are triangular, outer surfaee fine
granulate and glabrous, inside is sliek
glabrous, ligules prominent exeeeding
the sinuses in some instanees, 0.09 em
long and 0.06 em at the widest.

Ovaries: eolumnar, glabrous, 0.11
em tall and base pair 0.06 em wide.

Corolla: outside surfaee (ventral) of
lobes enlarged ea. 20x, is glabrous.

Sinus - sinus
Sinus - eenter
Sinus - apex
Apex - eenter
Widest

0.20 em
0.17 em
0.29 em
0.43 em
0.22 em

Corolla dorsal surfaee is pubeseent exeept
for a large area of the lobe apiees that is glabrous.
Apex is aeute, eorolla is revolute in open flower.

Corona: ventral surfaee enlarged ea. 18x. The
bilobes meet at the outer apiees have rounded lower
surfaees, eentral eolumn elear around the base (here a
small tag of the eorolla remains to the left). Surfaees are
glabrous. Bilobed edges almost form a skirt.

56

Corona dorsal surface, enlarged as above, with
center raised, inner lobes are spatulate and meet in the
center, dorsal is convex, outer apex is obtuse, with
bilobed sides, bilobes turn sideways on outer portions and
touch at outer apices.

Apex - apex

0.17 cm

Apex - end

0.23 cm

Widest

0.07 cm

Ret. - ret.

0.07 cm

Ret. - center

0.07 cm

Aw. - aw.

0.13 cm

Aw. - center

0.15 cm

Pollinarium enlarged ca.
140x.

Pollinium

length 0.32 mm
widest 0.15 mm

Retinaculum

length 0.05 mm
shoulder 0.08 mm

waist

hip

ext.

0.04 mm
0.05 mm
0.04 mm

Translator

length 0.15 mm
depth 0.04 mm

Caudicle

bulb diam. 0.06 mm

Translator/caudicle
Type: fb/cw

57

Peduncle: enlarged ea. 15x, terete, 4.0 em
long, glabrous, granulate 0.10 em diameter,
expanded at the raehis, whieh has round braeteate
struetures where the bulbous based pedieels
attaeh.

Column area on ventral side
of the eorona showing no eiliate
proeesses between the sinuses or
eiliate rim around the pistol as in
Hoy a leytensis. Therefore this
speeies is a false Hoya leytensis
“pseudo”.

Pietures from George Mendoza

Vial #16 DSC 4442 4450
4451

58

Cutting and a vial of flowers from George Mendoza 10 Oct. 2011

Leaves: small enervis but pinnate, petiole grooved 0.04 em long, internodes 4.5 em long,
adventitious roots at nodes. Uniform 1.5 em long x 1 em at the widest. 10 seen.

Pietures from Gorge
Mendoza, Quezon City,
Philippines 24 Sept. 2011,
as DSC # 0261. Colleeted
at Baler, Aurora Provinee,
Philippines at 800 m als
along the ereek inside a
mossy mountain on Feb.
2010 by George Mendoza et
al.

Cutting and vial of flowers sent by George Mendoza 10 Oet.2011 with eode Vial
#16, Aeanthostemma sp.

59

References:

1. In Philippine Journal of Science, i, Supplement (1906) 301-302. R.

Schlechter. Hoya bilobata Schlechter.

2. In Leaflets of Philippine Botany 10 Art. 131 (1938) 3582-83. A. D. E. Elmer.

Hoya leytensis Elm. n. sp.

3. Hoya memoria Kloppenburg sp. nova Typus 81074 (UC) in Fratema 17 #4:1-5 2004

4. Hoya Section Acanthostemma (Blume) Kloppenburg 2003, 160 pp.

Contributors:

Ms. Jennelyn M. Carandang is a University Research Associate, Crop Science Cluster-
Institute of Plant Breeding, University of the Philippines, Eos Banos (UPEB), Eaguna,
Philippines.

(Bebs) Maria Eusia D. Guevarra, Her title is University Researcher, Emit and Ornamental
Crops Section, Crop Science Cluster, institute of Plant Breeding, College of Agriculture,
University of the Philippines in Eos Banos, Eaguna, Philippines.

Dale Kloppenburg retired: Graduate UC Berkeley, plant genetics, Et. USNR, Plant
Breeder, Research Agronomist, now taxonomy of Genus Hoya.

George Mendoza, a Eandscape Artist, Nurseryman and Plant Explorer from Manila,
Philippines, visit his web site forest-treasures.com.

60

Hoya pseudoleytensis

Ciic%am& CurADdifi^

LUZON: Aiiront Province, MDnid|Mi|tti^ of Bultr:

MKJ m fljL tbecrrrk iifhle the rmwiy mouniRin

A s,n>itl l]Di).i }iianr vtirh T-io flDH'cra in tb iinibpL fWictl'
('□rtHl. Cofoau pe*eh, ImLs Iflie ■ pulT bilL

CorwB with T»iMiJ enfir «Bil Vt»y dlvlin>ri bllotn
iii«HEn| Bi ihp DiU-ripkn.

C?riB.>*i4ljr frera Bilcr,. A«ror*. live ipeelAt*

pliniFd iBd belB| RiBiwiaMtd ai <;K >|«^dQu'i iirCM.

GiinkBAii»M4M<rr
Dtl.: Klnpp«nb«r|,

Figure 1. Holotype of Hoya pseudoleytensis Kloppenburg,
Mendoza, Guevarra & Carandang, sp. nov. (Coll.
GK Mendoza & staff, CAHUP 71860).

61