208 
JOSEPH F. ROCK 
Forma intermedia differs from the typical pusilla in being a larger plant, 
in the more robust spikes, which are many-flowered and hirsute, and in 
the acute sepals. It differs from kauaiensis mainly in the linear-oblong 
leaves, which are strigosely hispid toward the apices, and in the shorter 
spikes. It forms the transition type between varieties kauaiensis and 
pusilla. 
Plantago pachyphylla var. pusilla Wawra, Flora 33: 568. 1874. 
Herbaceous, rosette-like; caudex very short, woolly between the leaves; 
leaves numerous, coriaceous, 2 to 4 cm. long, 4 to 6 mm. broad, oblong, 
spathulate, acute or rounded, 3- to 5-nerved ; blades glabrous below, strigosely 
hirsute above with yellow articulate hairs, entire; spikes (i to 7) 4 to 15 cm. 
long; peduncle glabrous, shining, slender, floriferous on its upper third or 
fourth and bearing from 3 to 5 flowers; rachis glabrous, but flowers woolly 
at the base; bracts half the length of the calyx, glabrous, rounded; sepals 
rounded, glabrous; corolla lobes linear-oblong, membranous, obtuse, one 
fourth the length of the tube ; capsule shortly acute, dehiscing at the middle, 
4-seeded; seeds reddish-black, oblong or ovoid-oblong, minutely wrinkled. 
Kauai: Plateau of Waialeale, no. 2166 Wawra, in Herb. Vienna, spec, 
n.v. ; Waialeale, Oct. 20, 1911, Rock, no. 8890 in College of Hawaii Herb.; 
Waialeale, Oct. 20, 1916, Rock, no. 16007 in College of Hawaii Herb. 
No. 16007 seems to be the typical pusilla, while no. 8890 is somewhat 
larger, the leaves being woolly below, at least along the nerves. 
Plantago pachyphylla var. rotundifolia Wawra, Flora 32: 567. 
1874. 
Caudex very short, fibrillous; leaves rosette-like, coriaceous, obovate or 
almost orbicular, 5 to 7.5 cm. long, narrowing at the base but not really 
petiolate, glabrous above, covered with a thick ochraceous stuppeus 
indumentum, 5-nerved; nerves arched, impressed above, invisible below; 
spikes one or two, erect, covered with a silky pubescence, rachis shorter 
than the peduncle, densely flowered; flowers woolly at the base, at length 
naked; bracts obtuse ; calyx segments obtuse ; corolla lobes broadly ovate, 
obtuse; capsule equaling the calyx, circumscissile at the middle, bilocular, 
2-seeded; seeds broadly ovate, yellowish brown, never glutinous. 
Kauai: Waialeale, high plateau in moss on trunks of trees, Wawra, no. 
2201 in herb. Vienna, spec. n.v. 
Plantago pachyphylla var. rotundifolia forma crassicaudex Rock 
forma nova. 
Caudex very thick, 10 cm. or more long; leaves obovate-oblong, with 
revolute margins, densely woolly below as in the variety, glabrous above; 
otherwise as in variety rotundifolia. 
Maui: Mt. Eeke, August, 1918, Rock, no. 16008 in College of Hawaii 
Herb. 
The writer establishes this form rather reluctantly as there are no 
mature spikes present on the single specimen collected, and only dead 
